Captain Roger Sankerdial, who works out of the 114th precinct in Astoria, Queens, shares the experience of being deployed on September 11, a mere ten weeks after beginning his police training.

A&E True Crime spoke to experts to explore the disturbing reasons why some men kill the person with whom they've vowed to share a lifetime.

MS-13 is not only terrorizing Long Island's village of Patchogue, but has Latinos who live and work there fearful that the gang's presence will contribute to widespread anti-Latino hostility.

Unique ways police officers around the country are working on improving their mental and emotional wellness.

We look at some high-profile cases where crime-scene glitches may or may not have tipped the scales of justice.

Sgt. Hager on the challenges of underwater crime scenes.

Forensics has revolutionized law enforcement in the last several decades.

Retired Detective Sergeant Joseph Giacalone had the pleasure of working with compassionate cops who truly loved the job and "cowboys" who were unworthy of the badge. Here are some of his stories.

We ask retired a CSI detective about the legitimacy of forensic techniques on TV to learn which are real and which are just for the camera.

We asked Live PD's Officer Alyssa Wright how it feels to be called a role model, working with her K-9 partner Cairo, and what you didn't see happen during that intense take down featured on a recent episode.

Retired CSI Ken Martin breaks down what happens once law-enforcement arrives and some of the challenges he's faced in gathering evidence.

Ken Martin, a veteran crime scene investigator, describes problems that arise when gathering evidence, and how to avoid having defense attorneys claim contamination.

Linda Fairstein talks to us about her most memorable unsolved case, what concerns her about how sexual assaults on college campuses.

Women have been murdering their children since the beginning of time. But what would drive someone to end a life they brought into the world?

With O.J. Simpson having recently been granted parole after serving almost nine years for armed robbery, we're reminded of some other famous folks who have gotten in trouble for supposedly sticky fingers.

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

Many people think the concept of a citizen's arrest is a joke or a myth. We asked Live PD analyst Tom Morris Jr. about this practice.

Tony Lewis Jr. talks to us about his struggle getting people to understand that when a person goes to prison, their family goes with them.

Caylee Anthony’s disappearance shocked the nation in 2008.