"Kill or Be Killed" reveals the stories of those who lost their lives at the hands of someone they knew, who then claimed it was self-defense. In these complex cases, the lines between murder and justifiable homicide are blurred, making them some of the hardest cases to solve. When the killer is the best and sometimes only witness, investigators must scrutinize every other detail. Law enforcement, prosecutors and defense attorneys unravel every detail, from the harrowing stories, forensics, interrogations and witness statements that led up to the gruesome event in order to find answers.

At a grisly murder scene sits a figurine made of chestnuts. From this creepy clue, two detectives hu...

Twelve years ago, several homicides caused a sensation in the city. The victims were all from the bo...

A five part Sky Original documentary series that will look into the unsolved case of Sophie Toscan d...

Philip Manshaus shot his stepsister Johanne before driving to the mosque to kill as many Muslims as ...

Caitlin "Cat" Sullivan is an NYPD detective working in Brooklyn. After her driving privileges are su...

Columbo is a friendly, verbose, disheveled-looking police detective who is consistently underestimat...

A twisted criminal's gruesome videos drive a group of amateur online sleuths to launch a risky manhu...

Der Kommissar is a German television series about a group of detectives of the Munich homicide squad...

Using modern forensic science techniques and criminalistics to revisit the violent murder of an Egyp...

Examine the investigation into school assistant Maxine Carr and her fiancé Ian Huntley, who was impr...

Storm chasers, survivors and first responders recount their harrowing experiences with volcanoes, to...

The story behind the crime that occurred in the summer of 2016 in Pioz, a small town in La Alcarria,...

Examining unspeakable crimes in Las Vegas, where the bright lights and good times belie a dark under...

After a bombing attack at the Poland–Ukraine border which killed his friends from the Border Guard, ...
With only 15 percent of homicide detectives in the U.S. being women, the working lives of female det...

Detective Andrea Cornell is a tough, thorough Homicide Detective who leaves no stone unturned. Her u...

A legal drama about team of young and passionate prosecutors who banded together to fight against in...

Robert Durst, scion of NY's billionaire real-estate family, has been accused of three murders but ha...

When Detective Kat Donovan matches on a dating app with the fiancé who disappeared years before, she...