See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A crime scene investigator who has worked more than 3,000 deaths uses ...

Nancy Guthrie’s disappearance has taken another grim turn after a forensic expert weighed in on blood evidence from her home.

Forensic scientist Amy Santoro of Santoro Forensics provided a detailed bloodstain pattern analysis of the scene on the Tuesday, March 17 episode of "The Megyn Kelly Show." Droplets were found leading ...

Blood droplets found outside of Nancy Guthrie‘s Tucson, Ariz., home could reveal new clues as to what happened to the ailing 84-year-old amid her terrifying abduction. In the wake of her disappearance ...

Tucson matriarch Nancy Guthrie's blood droplets were found on her front porch. It's a disturbing detail, and it's one of the ...

The National Institute of Justice gave more than $1 million to the state Bureau of Criminal Apprehension to study handwriting characteristics and bloodstain patterns, the BCA said Monday. These two ...

AMES, Iowa – Daniel Attinger paused before handing over a photo of a crime scene. “Are you bothered by the sight of blood?” There was good reason for his question: The photo showed blood pooled and ...

Anyone who’s a fan of TV police procedurals and true crime knows that many cases hinge on blood pattern evidence. That’s nothing new. The first documented use of bloodstain pattern analysis, or BPA, ...

FRESNO, Calif. (KSE E /KGPE) – Ever wondered how blood is used to solve crimes? Local community members gathered at the Betty Rodriguez Library in Fresno on Monday to get a look into the world of ...

As more people seek to go where no man has gone before, researchers are exploring how forensic science can be adapted to extraterrestrial environments. A new study highlights the behavior of blood in ...

In the ongoing investigation into the disappearance of Nancy Guthrie, the 84-year-old mother of TODAY show co-anchor Savannah Guthrie, forensic experts have analyzed a trail of blood found at her ...