With the 2017 chloroform-poisoning murder of 3-year-old Mariah Kay Woods, A&E True Crime explores the history of the chemical's use and how it kills.

Dep. Chris Mastrianni discusses the moment when he had to tackle a suspect holding a child, misconceptions about policing and the importance of body cameras.

The execution of a prisoner on death-row usually results in the beginning of a new trauma for the family members they leave behind.

Cracking a murder case commonly draws on forensic evidence and eyewitnesses, but occasionally victims themselves—either before they die or after—are playing a role in helping find their suspected killers.

In an excerpt from Pistols and Petticoats: 175 Years of Lady Detectives in Fact and Fiction by Erika Janik, see how one early policewoman helped solve a sensational murder and the vital role the first policewomen played in busting prostitution rings, finding missing people and more.

Working as a real-life crime-scene investigator is far different from the way it's often portrayed in crime dramas. A&E True Crime clears up some of the biggest misconceptions about being a CSI, according to actual crime-scene experts.

A&E True Crime spoke with Marcus Parks—whose podcast "The Last Podcast on the Left" ran a special on Jonestown—to learn more about the last fateful hours of the men, women and children who died that tragic day.

K-9 Master Trainer Lt. Glenn Jackson, who helps train Live PD's Flex and Cairo along with their human partners, on what he looks for in bringing in new police dogs, the relationship between K-9s and their partners and a funny challenge he had with training Cairo.

Experts weigh in on whether the 918 people, including almost 300 children, who died during the Jonestown massacre were victims of suicide or murder.

We spoke to Rachel Jeffs about leaving the polygamous life behind, whether the FLDS could ever be brought down and how she feels about her notorious father, Warren Jeffs.