Matthew Hoffman was a seemingly ordinary tree trimmer in the sleepy town of Mount Vernon, Ohio, but he concealed an obsession with trees and a brutally violent side.
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The suburbs of Seminole Heights, Florida was rocked by a series of murders by a disgruntled college graduate.
A young man complains to police about investigating him for three murder cases. What they don't realize at first is they're speaking with one of America's youngest serial killers.
Matthew Hoffman was a seemingly ordinary tree trimmer in the sleepy town of Mount Vernon, Ohio, but he concealed an obsession with trees and a brutally violent side.
In 1976 Wisconsin, 25-year-old David Schuldes and 24-year-old Ellen Matheys are murdered in a park. The case goes cold until 2015 when advancements in DNA science reignite the investigation.
In 1986, police struggle to find a young mother's killer. Years later, can genetic genealogy provide answers?
In 1989, 20-year-old Krista Martin is murdered by an intruder in Wichita, Kansas. After a 40-year investigation, will investigative genetic genealogy provide answers for her family?
Jealousy and addiction drove Emilia and Patricia to commit the violent murders that landed them on death row.
Sisters Donna and Jeannie are convicted after planning to kill Donna's husband with a hammer. Next, Evelyn pleads guilty to torturing and drowning a woman due to jealousy.
Mark Arthur wanted to control his wife Heather's every move, even tracking her phone. When she met another man, he lost control.
Omar Murray worked hard to give his wife Alisha everything she wanted. But it wasn't enough, and Alisha decided he was worth more dead.
Steven McDowell refused to accept that his marriage to Crystal was over. When she disappeared during a hurricane, efforts to uncover foul play were hampered.
Claire and Andrew Tavener were a sociable couple...almost too sociable. When Andrew got drunk, he became paranoid and violent.
Kirstin Stephens seduced her co-worker Charlie and then spent all his cash. She started to plan for life after Charlie.
Highway 16 in British Columbia has been dubbed "The Highway of Tears" due to the amount of reported missing peoples. Growing up near this notorious road was young serial killer Cody Legebokoff.
Detectives in Houston, Texas search for a killer with an everyday job and a signature method. Though he evades capture for years, it's an in-the-family atrocity that brings him to justice.
Forensic pathologist Dr. Richard Shepherd investigates the murder of Jeffrey Howe. His body was found cut up into different pieces and strewn across the U.K. by Stephen Marshall and Sarah Bush.
Forensic pathologist Dr. Richard Shepherd investigates the murder of Mark Bradbury by his friend Daniel Shovelton, who killed him to obtain his drugs.
A devoted mother is afraid for her life against her abusive spouse she lives in fear that every corner she turns, her estranged spouse awaits.
Micah Rine was a good Christian girl, and she thought her husband Thomas Pate was equally devoted to God.
Greg and Michele Williams were attacked in their home. He died, and she survived. How would detectives unpick what really happened?
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