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Posts Tagged ‘forensic’

Bird Expert Helps Solve a Murder

Posted in Uncategorized, tagged , , , , , , on August 19, 2025| 2 Comments »

Photo: Chip Clark/Smithsonian Institution/Department of Vertebrate Zoology, Division of Birds.
Ornithologist Roxie Laybourne, originator of forensic ornithology, examining a feather.

I love reading murder mysteries. Not all of them, mind you. I’m a sucker for any mystery from a foreign country or unfamiliar culture, but I recently discarded an Icelandic one that was too noir.

I love mysteries partly for the sense of helping a detective solve a puzzle, and for learning new things. Sometimes it’s a country I’m learning about, sometimes a science. After reading today’s article, I am hoping there will soon be a mystery based on the scientific career of Roxie Laybourne.

Chris Sweeney wrote at the Boston Globe Magazine recently about the “mild-mannered scientist” who created the field of forensic ornithology.

“Murders weren’t Roxie Laybourne’s forte, but she had a job to do. On the evening of April 26, 1972, the 61-year-old ornithologist climbed into the back seat of a detective’s car at Bangor International Airport. … As the car neared the hotel, she noticed a smattering of peculiar structures lining the sides of the road. …

“At her hotel, Laybourne received a handwritten letter from Peter Culley, the young state prosecutor who’d soon be interrogating her on the witness stand. … Culley, a lifelong Mainer who was just a few years out of law school, had plotted an exhaustive case against Henry Andrews, a 35-year-old laborer who stood accused in state court of the brutal murder of Hazel Doak, his elderly former landlord. Laybourne would appear in the penultimate act of the prosecutor’s script, the last witness he’d call before closing arguments. …

“She was an authority  —  perhaps the authority  —  on feathers. Culley hoped that if any embers of doubt were still smoldering in the jury box by the time Laybourne took the stand, she’d extinguish them by offering up scientific analysis showing that feathers recovered from the scene of the crime matched bits of feather that were found on Andrews’s clothing at the time he was apprehended. …

“Build an economy on the back of butchered chickens and life will get messy. As Laybourne observed on her first morning in town, the industry’s leftovers were everywhere. Some residents had to rake feathers off their lawns and others complained of a foul stench that would drift through their yards. Most unappetizing was the steady stream of putrefied byproduct that flowed out of the processing plants and into Penobscot Bay. The bloody, fatty industrial runoff caked the shoreline and congealed into a blanket that bobbed atop the water. At low tide, a rust-colored stain could be seen on the rocks and sand, earning Belfast the unfortunate nickname ‘the City with a Bathtub Ring.’ …

“To showcase the local industry’s might, Belfast started hosting an annual Maine Broiler Day in 1948. What began as a one-day barbecue soon ballooned into a weekend-long bonanza of grilled protein and ice-cold beverages. State and local politicians strutted through the crowds to press the flesh with constituents and the chicken companies sponsored a Broiler Queen contest in which women were judged on ‘poise, personality and appearance,’ according to the New England Historical Society. …

“On the weekend of July 17, 1971, however, the celebration soured. That’s when, according to prosecutors, Henry Andrews blew into town on Friday with two friends who were ready to party.

“Drinks flowed early and the first place Andrews took his buddies was a sturdy white farmhouse a mile outside of town. He had rented a room there a few years earlier while clearing trees on the surrounding property. During the impromptu visit, Andrews found Hazel Doak, a 71-year-old widow who had lived there for more than 20 years. She was Andrews’s landlord during his time in town and the relationship was allegedly rocky.

‘Doak didn’t appreciate Andrews showing up unannounced that Friday: After a tense exchange, she asked the two men accompanying Andrews to remove him from her property and get lost. They complied, shook off the uncomfortable start to the weekend, and made their way into town for dinner and a night of drinking.

“Around 1:45 a.m., an inebriated Andrews reportedly ditched his pals and teetered over to the Main Street taxi stand, where, through droopy eyes and slurred words, he asked for a ride back to the Doak farm. …

“At 10:30 the next morning, Doak’s longtime friend Edith Ladd pulled up to the house. The two women had spoken on the phone the previous night and made plans to head over to the broiler festival together. Ladd went to the back entrance that she typically used and found it still latched shut. She went around to the front of the house, where the door swung wide open. Inside, she found Doak’s lifeless body heaped on a bed, clad in nothing but a nightgown. …

“Ladd called the police and huddled in her car with her daughter, grandson, and other family members, who had been waiting patiently to get to the festival. When the officers arrived, they followed the trail of feathers downstairs and found the cellar door cracked open. The best they could surmise, someone had grabbed Doak’s pillow and smothered her with such force that it burst the pillow open and sent feathers everywhere, including onto the murderer. …

“Near the end of the weekend, a soaking-wet Andrews walked into the Belfast Police Station and, according to police testimony, allegedly declared, ‘I came to give myself up.’ …

“The sheriffs on duty knew exactly who Andrews was and what he was wanted for. They placed him under arrest and collected his clothes  —  and the feathers that were stuck to them. Police sent several bags of evidence to the FBI for careful analysis at the bureau’s crime lab in Washington, D.C. …

“Knowing the murder weapon was a pillow, the agents in Washington understood that the feathers stuck to his clothes might be a key piece of trace evidence, but they had no clue how to analyze them in any meaningful way. Fortunately, they had heard all about a little old lady named Roxie Laybourne over at the Smithsonian.”

Now I’ve done the unforgivable for a mystery! I’ve left you with a cliffhanger. You’ll have to read the rest of the story at the Globe, here. It’s a long one.

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A Neanderthal Paints a Nose

Posted in Uncategorized, tagged , , , , , , , on June 8, 2025| 6 Comments »

Photo: Álvarez-Alonso et al.
The archaeologists excavating on the outskirts of Segovia, Spain, noticed there was something odd about this stone.

Today we ask ourselves the timeless question, “Did Neanderthals ever just horse around?”

Sam Jones has a scenario at the Guardian, “One day around 43,000 years ago, a Neanderthal man in what is now central Spain came across a large granite pebble whose pleasing contours and indentations snagged his eye.

“Something in the shape of that quartz-rich stone – perhaps its odd resemblance to an elongated face – may have compelled him to pick it up, study it and, eventually, to dip one of his fingers in red pigment and press it against the pebble’s edge, exactly where the nose on that face would have been.

“In doing so, he left behind what is thought to be the world’s oldest complete human fingerprint, on what would appear to be the oldest piece of European portable art.

The discovery, which could enrich our understanding of how Neanderthals saw and interpreted the world, has come to light after almost three years of research by a team of Spanish archaeologists, geologists and police forensic experts.

“The dig team noticed there was something odd about the stone – which is just over 20cm [~8 inches] in length – as soon as they found it while excavating the San Lázaro rock shelter on the outskirts of Segovia in July 2022. It did not look like something that had been used as a hammer or an anvil; it didn’t look like a tool at all.

“ ‘The stone was oddly shaped and had a red ochre dot, which really caught our eye,’ said David Álvarez Alonso, an archaeologist at Complutense University in Madrid. … We were all thinking, ‘This looks like a face.’ But obviously that wasn’t enough.

” ‘As we carried on our research, we knew we needed information to be able to advance the hypothesis that there was some purposefulness here, this was a symbolic object and that one possible explanation – although we’ll never know for sure – is that this was the symbolization of a face.’ …

“The team enlisted the help of other experts. Further investigations confirmed that the pigment, which contained iron oxides and clay minerals, was not found elsewhere in or around the cave.

“ ‘We then got in touch with the scientific police to determine whether we were right that the dot had been applied using a fingertip,’ said Álvarez Alonso. ‘They confirmed that it had.’ The print, they concluded, was human and could be that of an adult male. …

“Álvarez Alonso argues that the dot’s existence raises questions that all point in the same direction.

“ ‘It couldn’t have been a coincidence that the dot is where it is – and there are no markings to indicate any other use,’ he said. ‘So why did they bring this pebble from the river to the inside of the cave? And, what’s more, there’s no ochre inside the cave or outside it. So they must have had to bring pigment from elsewhere.’

“The team’s findings, reported in the journal Archaeological and Anthropological Sciences, reinforce the idea that Neanderthals – who died out some 40,000 years ago – were capable of acts of artistic and symbolic creation, meaning modern humans were not the first to use art as a means of expression.

“ ‘The fact that the pebble was selected because of its appearance and then marked with ochre shows that there was a human mind capable of symbolizing, imagining, idealizing and projecting his or her thoughts on an object,’ the authors write.

“ ‘Furthermore, in this case, we can propose that three fundamental cognitive processes are involved in creating art: the mental conception of an image, deliberate communication, and the attribution of meaning. These are the basic elements characterizing symbolism and, also prehistoric – non-figurative – art. Furthermore, this pebble could thus represent one of the oldest known abstractions of a human face in the prehistoric record.’ …

“ ‘We’ve set out our interpretation in the article, but the debate goes on,’ he said. ‘And anything to do with Neanderthals always prompts a massive debate. If we had a pebble with a red dot on it that was done 5,000 years ago by Homo sapiens, no one would hesitate to call it portable art. But associating Neanderthals with art generates a lot of debate.’ I think there’s sometimes an unintentional prejudice.’ “

More at the Guardian, here.

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Linguist as Crime Fighter

Posted in Uncategorized, tagged , , , , , on February 13, 2025| 6 Comments »

Image: The Dial.

I read a lot of murder mysteries. They are not the only type of book I like, but I like the puzzles and sometimes even the writing. So I was drawn to today’s article on the emergence of an unlikely crew that has gotten involved in solving tough cases.

Julia Webster Ayuso wrote recently at the Dial about forensic linguists.

“On the evening of October 16, 1984, the body of four-year-old Grégory Villemin was pulled out of the Vologne river in Eastern France. The little boy had disappeared from the front garden of his home in Lépanges-sur-Vologne earlier that afternoon. His mother had searched desperately all over the small village, but nobody had seen him.

“It quickly became clear that his death wasn’t a tragic accident. The boy’s hands and feet had been tied with string, and the family had received several threatening letters and voicemails before he disappeared. The following day, another letter was sent to the boy’s father, Jean-Marie Villemin. ‘I hope you will die of grief, boss,’ it read in messy, joined-up handwriting. ‘Your money will not bring your son back. This is my revenge, you bastard.’

“It was the beginning of what would become France’s best-known unsolved murder case. The case has been reopened several times, and multiple suspects have been arrested. Grégory’s mother, Christine, was charged with the crime and briefly jailed but later acquitted. Jean-Marie also served prison time after he shot dead his cousin Bernard Laroche, who had emerged as a prime suspect. …

“More than three decades after Grégory’s murder, police brought in a team of Swiss linguists from a company called OrphAnalytics to examine the letters and their use of vocabulary, spelling and sentence structure. Their report, submitted in 2020, and part of which was leaked to the press, pointed to Grégory’s great-aunt, Jacqueline Jacob. The results echoed earlier handwriting and linguistic analysis that had led to Jacob and her husband’s arrest in 2017. (The couple was freed later that year over procedural issues.)

“While the new evidence has not yet been presented in court, some believe it could help to solve the case that has haunted an entire generation. It has also shone a spotlight on the little-known field of forensic linguistics. In France, the use of stylometry — the study of variations in literary styles — has largely been confined to academic circles. The Grégory case is the first time it has been applied in a major criminal investigation.

“The use of forensic linguistics in the case was initially treated with skepticism. … The general prosecutor at the Court of Appeal of Dijon, Philippe Astruc … cautioned: ‘To imagine that it will suddenly be settled with a single report is an illusion.’

“ ‘The press didn’t understand it, and the lawyers are saying it can’t work,’ Claude-Alain Roten, CEO of Orphanalytics, told me over the phone from his office in Vevey, a Swiss town on Lac Léman. But he assured me his results are reliable. ‘We came to similar conclusions to the conclusions they had already reached by other means,’ he said, adding that OrphAnalytics last year completed another report commissioned by the general prosecutor of Dijon, who oversees the Villemin investigation, analyzing an additional anonymous letter. ‘It gives us a very precise idea of who the person who wrote the letter is.’

“According to forensic linguists, we all use language in a uniquely identifiable way that can be as incriminating as a fingerprint. … The term ‘forensic linguistics’ was likely coined in the 1960s by Jan Svartvik, a Swedish linguist who re-examined the controversial case of Timothy John Evans, a Welshman who was wrongfully accused of murdering his wife and daughter and was convicted and hanged in 1950. Svartvik found that it was unlikely that Evans, who was illiterate, had written the most damning parts of his confession, which had been transcribed by police and likely tampered with. The real murderer was the Evans’ downstairs neighbor, who turned out to be a serial killer.

“Today, the field is perhaps still best known for its role in solving the ‘Unabomber’ case in the United States. Between 1978 and 1995, a mysterious figure sent letter bombs to academics, businessmen and random civilians, killing three people and injuring at least 24. The lone bomber was careful not to leave any fingerprints or DNA traces, evading the authorities for 17 years and triggering one of the longest and most expensive criminal investigations in U.S. history. But in 1995, he made a crucial mistake. He told the police he would pause his attacks on the condition that a newspaper publish his 35,000-word anti-technology manifesto.

“When the document appeared in the Washington Post, the New York Times and Penthouse magazine, several people — including the perpetrator’s brother— reached out to say they recognized the writing style. Meanwhile, FBI linguist James Fitzgerald and sociolinguist Roger Shuy, who had been studying the bomber’s letters, had identified patterns in his language that helped narrow the list of suspects: Spellings such as ‘wilfully for ‘willfully’ and ‘clew’ for ‘clue’ pointed to someone from the Chicago area, for example. Eventually, the linguistic evidence was strong enough to issue a search warrant for the home of a reclusive mathematician named Theodore Kaczynski, raised in Chicago but living in rural Montana, where investigators found copies of the manifesto and homemade bombs. …

“At OrphAnalytics, Roten, who has a PhD in microbiology, explains that algorithms identify patterns in syntax much like in a DNA sequence. The difference, he tells me, is ‘there are very few errors in genome sequences, which is not the case when we compare texts,’ he said. Unlike with DNA, which a perpetrator can’t control, the author of a poison-pen letter is likely to try to obscure his writing style, for example by trying to sound less educated or to seem foreign.

“Still, linguists argue that style is almost impossible to hide because many of the choices we make are unconscious. Someone may decide to spell a word wrong, but forget to modify less noticeable details, such as their use of punctuation. ‘People say a lot about themselves when they’re trying to hide their writing,’ said Roten.”

More at the Dial, here. No firewall.

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