Bestselling true-crime writer Suzy Spencer tours a body farm at Texas State University, where researchers study body decomposition in different settings to help those in forensic science and law enforcement fields.

Thomas G. Martin, former federal agent gives his take on the disappearance of Madeleine McCann.

From suspects hiding behind fake walls to chasing naked peeping Toms, the Live PD analyst shares his most memorable arrests.

Writer Larry Brand of the 'Young Charlie' podcast talks about misconceptions about the deranged cult leader's early years.

When you're paid to interview killers, you learn what to expect: lies, manipulation, and eventually, the truth.

An excerpt from Michael Arntfield's 'Mad City: The True Story of the Campus Murders America Forgot,' on the murder of Christine Rothschild.

Stopping an armed robbery while out on a date was just another day in the life of NYPD cop Ralph Friedman, who was the force's most decorated detective when he retired in 1984.

An expert in the psychology of school shooting perpetrators talks about who commits these heinous crimes.

*A&E Crime & Investgiation* spoke to a psychologist and a criminal profiler about the serial killers featured on Mindhunter.

Sgt. Leverett talks to us about how he gets people to tell the truth, the unexpected places he's found drugs (butts aren't that unusual) and what would surprise fans to know about his K-9 partner Flex.

Melting ice that exposed the buried bodies of missing people was one offbeat way a cold case was reopened.

Authors Blaine Pardoe and Victoria Hester on why eight murders along Colonial Parkway in Virginia have gone unsolved for so long.

As much as people like to think of their four-legged friends as family members, legally, they're property.

Some of the most notorious serial killers of our time have something in common, beside their thirst for blood: They were all adopted. We spoke with criminologist Dr. Scott Bonn to see whether there is any evidence of an adoptee-serial killer connection.

A&E talks with Dr. Scott Bonn, criminologist and author of the book, 'Why We Love Serial Killers' about what he thinks were the powerful catalysts for the makings of a serial killer.

Ken Holmes, a retired death investigator and coroner, on the small clues that have helped solve big crimes.

These criminals were literally dressed to kill.

Kristina Anderson, who survived the Virginia Tech shooting, shares how to prepare for an active shooter scenario.

Fred Paige, investigator on the A&E series The Eleven, on why the murders of so many teenage girls in Texas have gone unsolved for so long and the common thread among family members of the victims.

Celeste and Steven Sanchez recount their experience helping victims at the Las Vegas shooting.

The Murdaugh murders exposed a web of deceit and financial crime.

Caylee Anthony’s disappearance shocked the nation in 2008.