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Wealthy dentist Kirk Turner tells police he killed his wife, Jennifer, with a pocket knife after she impaled him with a spear.

Kill or Be Killed

Spear and Loathing

A cosplay model makes a frantic 911 call and claims that she woke up to find her boyfriend stabbed to death; surveillance footage from around the home leads detectives to the killer,it raises the question of whether it was self-defense or murder.

Killer Cam Girl

After suffering years of abuse, a Missouri woman claims she had no choice but to kill her husband during a gun struggle; when the autopsy is performed on the body her mother helped her bury, however, her self-defense story comes into question.

Taking It to the Grave

An Army veteran kills the head of his girlfriend's household after confronting him about sexually assaulting the young woman; after hearing a recording of the fight, investigators must decide if this was vigilante justice or self-defense.

Vigilante Violence

A mother of three shoots and kills her neighbor in a home invasion, leaving a small community grasping for answers; while the neighbor's parents question this apparent act of self-defense, police find a journal that leads to the truth.

Shots in the Dark

Seventeen-year-old Anthony Templet calls 911, confessing to shooting his father in self-defense; with no signs of a physical attack, authorities suspect murder; as the investigation unfolds, the dark underbelly of the family is exposed.

The Other Side of the Door

Hector Campos fatally shoots neighbor Ana Weed after an argument on their property line; while Hector takes to national TV to plead self-defense, Ana's family reveals to investigators a tale of betrayal, secret spouses and a fateful escape to Mexico.

Kill Thy Neighbor

A former Marine is fatally shot by his neighbor in broad daylight; the shooter claims self-defense, but eyewitnesses state he was the aggressor; when investigators uncover a feud between the two, it calls both of their motivations into question.

Suburban Showdown

A family is in shock when their patriarch kills his brother-in-law and claims self-defense; when police uncover a bizarre story of missing cash and betrayal among this tight-knit immigrant family, the community doesn't know what or who to believe.

Clash of Kin

An aspiring doctor shoots her husband in front of their two sons on the side of a Nebraska interstate; a jury must decide whether this was an abused woman defending her life or a fed-up wife who wanted out of her marriage.

A Fatal Fork in the Road

After best friends spend an evening Christmas shopping, the night ends with one man fatally shooting the other; the survivor claims self-defense, but his foggy memory, forensic evidence and witness accounts suggest there could be more to the story.

Friends 'Til the End

A teen makes a 911 call claiming his grandmother shot him, but detectives uncover drugs and deep familial conflicts spanning a generational divide, leaving a jury questioning who to believe.

Grandma's Gun

The stories of those who lost their lives at the hands of someone they knew, who then claimed it was self-defense.

S1 E1 | Grandma's Gun

E12 | Spear and Loathing

E11 | Killer Cam Girl

E10 | Taking It to the Grave

E9 | Vigilante Violence

E8 | Shots in the Dark

E7 | The Other Side of the Door

E6 | Kill Thy Neighbor

E5 | Suburban Showdown

E4 | Clash of Kin

E3 | A Fatal Fork in the Road

E2 | Friends 'Til the End

E1 | Grandma's Gun