Blood pattern expert uses his OWN BLOOD to teach world about crime scene investigations

Meet the blood pattern expert who has investigated over 3000 DEATHS and uses HIS OWN BLOOD on social media to teach the world how to approach crime scene investigations.

Jeffrey Gentry is a certified Bloodstain Pattern Analyst and Death Investigator, who spends his days inspecting blood splatter at real-life crime scenes.

In his downtime Jeffrey utilises social media and online classes to teach others about his passion.

He is one of only 60 International Association for Identification (IAI) Certified Bloodstain Pattern Analysts in the world.

His professional history also includes roles as an ABMDI certified Deputy Coroner death investigator, Forensic Toxicology Analyst, and Forensic Autopsy Technician.

During his career, he has investigated and prepared reports for over 3000 deaths including homicides, motor vehicle accidents, overdoses and suicides.

Hailing from Fresno, California, Jeffrey began his journey in death investigation in 2005, when he began working as a Mortician's Assistant.

Jeffrey has a hard science background, with a Bachelor's Degree in Biochemistry and Molecular Biology and Associate Degrees in Life Science, Mathematics and Liberal Arts.

He noted that his background in science combined with his investigative experience made him perfect for the notoriously-difficult career as a Bloodstain Pattern Analyst.

He said: “When I was younger I was always interested in medicine, science and all things unique and morbid.

“While raising my son alone and supporting myself through college, I developed an interest in Forensic Science.

“Years ago, a college professor and colleague suggested that I look into bloodstain pattern analysis.

“I worked very hard to meet the requirements of a certified bloodstain pattern analyst.

“When I did, I applied and became certified…the rest is history!”

Jeffrey decided that he would begin posting funny and educational content on social media with the hopes of providing the younger generation of true crime followers with access to reliable and educational content.

He started posting videos on YouTube, Facebook and - his favourite - TikTok in November 2021, where he has since amassed an audience of over 80,000 followers. 

His videos use a simple, practical approach to show the various tools and methods that he uses to identify blood stains and patterns.