‘Stabbing, Chopping’: Gruesome Damage to Tylee Ryan’s Remains Detailed by FBI Forensic Examiner

TL;DR

A forensic expert examines tool marks on bones and identifies various types of damage caused by chopping and stabbing actions.

Transcript

you can see the bone here and these are actually outlines the digital outline that I drew around the damage regions and then I I lettered each one of them so starting with with a uh that I determined was a um cause from a stabbing type action over the B here which was a chopping top action and then C and D chopping type action okay now turning your... Read More

Key Insights

• 🔨 Tool marks on bones can provide valuable insights into the type of actions and potential tools used in crimes.
• 💋 Chopping and stabbing actions were identified as the cause of the observed tool marks.
• 🔨 The expert could not find individual characteristics within the tool marks, but they identified certain class characteristics and potential tool types.

Questions & Answers

Q: What types of actions were responsible for the tool marks on the bones?

The tool marks were caused by chopping and stabbing actions. The expert identified different characteristics for each type of action and labeled them accordingly.

Q: Were any individual characteristics found within the tool marks?

Despite thorough analysis, no individual characteristics were found within the tool marks. The expert focused on identifying class characteristics and potential tool types instead.

Q: Can the expert determine the specific tools used to create the tool marks?

The expert could not determine the specific tools used, but they identified certain tool types that were consistent with the observed damage. These included bladed tools such as knives, cleavers, machetes, and hatchets.

Q: Did the tool marks penetrate the hard layer of the bone?

Some of the tool marks penetrated the hard layer of the bone, while others did not. The penetrated marks often led to fractures and carried bone fragments into the damaged area.

Summary & Key Takeaways

• The forensic expert examines tool marks on bones, specifically focusing on the damage caused by chopping and stabbing actions.

• Each tool mark is labeled and analyzed in detail, noting the direction of force and the types of actions involved.

• The expert differentiates between marks that pierced the hard layer of the bone and those that did not, as well as identifying potential tools that could have caused the damage.