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.

A&E True Crime spoke about the ethics and legality of robotic policing with Ryan Calo, a law professor at the University of Washington and a leading scholar in emerging technology and the law.

It's not uncommon for violence against women to reach a deadly peak on what some say is the most romantic day of the year.

Richard Lopez, a former prison chaplain, spoke to A&E True Crime about how murderers on death row come to embrace a higher power while awaiting execution.