Isabel Martinez recently shocked the world by allegedly stabbing to death her husband and four of her five children (she's been charged with multiple accounts of murder and aggregated assault). Although she has yet to be convicted of any crime, we are reminded of famous cases of mothers convicted of killing their children.

Live PD analyst Tom Morris Jr. shares tips on how best to behave—and communicate—during a brush with police.

Hot weather can spark tempers, and experts have plenty of theories.

Join Brooke Gittings from the hit podcast, Convicted, as she takes a deeper dive into the Cold Case Files episode, "Officer Down," in the latest installment of Cold Case Files: The Podcast.

Gianni Versace's alleged murderer's killings have been described as a "spree," while the FBI classifies him as a serial killer.

Meet four female murders whose stories you won't forget.

Ted Bundy was one of the most prolific and notorious serial killers in U.S. history—he confessed to murdering at least 36 women, but some estimates put the number of victims as high as 100. But despite his infamy, many people find him to be one of the most physically attractive and charismatic murderers.

An excerpt from David Schmid's article, "Why Americans Are So Fascinated by Serial Killers," on HISTORY.com.

There are plenty of murderers who have killed more times than Ed Gein, but few have left a deeper impression on American culture. Read about him and watch a video on his life.

By the time the murderess's crimes were discovered at her burnt-out pig farm in 1908, her tally of victims had risen to at least 12, and possibly as high as 40.

Killers who leave notes at crime scenes or mail missives to police and the press take a big risk. Read stories and watch videos about eight murderers who just had to put it in writing.

Convicted podcaster Brooke Gittings and attorney Rachel Kamins talk about where Convicted and the series The Keepers potentially intersect.

We've all heard that one big sign someone is lying is if they can't look you in the eye. How much truth is there to that? Apparently, none.

Watch highlights from Live PD featuring fan favorite moments featuring the show's courageous canines.

Why is it yellow? Can you really get two years behind bars for crossing it? Learn more about the origins of crime scene tape.

A forensic artist about her work from reconstructing a lost person from a skull to helping traumatized victims remember visual details.

Michael J. Tillman says 20 years in the crime-scene cleanup field have taught him how to walk the line between sensitive, personal care for a victim's family and maintaining a sense of remove so he can still come to work the next day.

We speak with author Nick Bilton about Ross Ulbricht's extremely successful (and totally illegal) website.

Live PD's Sgt. 'Sticks' reveals his favorite police movies.

Caylee Anthony’s disappearance shocked the nation in 2008.