Daniel Paulsrud says his fatal shooting of partner Leslie was an accident. But accounts from her family — and his handwritten notes — raise doubts.

Accept a plea deal or go to trial? Three men receive radically different prison sentences for their roles in the fatal shooting of a cab driver.

David Cameron Keith recalls the day he took a young hostage before heading to an airport and killing the pilot who volunteered to take the child's place.

Ezdeth Highley reflects on her murder conviction, her transition while being incarcerated and what she's learned during her ongoing 60-year sentence.

James Walker claims he has no recollection of the 2001 murder he confessed to committing. An investigation into his traumatic past offers more context.

By helping his fellow inmates, Jamel Hatcher feels he's turned his life around — but not everyone believes his rehabilitation is genuine.

When threatening messages escalate into an assault that leaves one teen dead and another severely injured, Kimberly Dunkin reflects on her involvement.

After shooting his ex-girlfriend and her new lover, Charles Thompson is charged with manslaughter -- until his ex dies due to a hospital error.

One of the small number of women who commit murder, Lindsay Haugen claims that she strangled her depressed boyfriend in 2015 as an act of mercy.

At a New Year's Eve party in 1996, Brandon Hutchison killed two brothers, a crime he admits — but there are conflicting versions of the story.

Mark Arthur maintains that he murdered a friend's father on a Houston highway for savagely beating his wife. But police have a different theory.

In prison for killing her husband, a woman details her past abuse and her turbulent marriage. Her mother also reflects on their strained relationship.

Years after leaving the military, Toby Gregory claims his service and PTSD caused him to murder his wife, Inez. But Inez's family believes otherwise.

After fatally shooting a coworker, Thomas "TJ" Schiffens maintains his innocence. But details surrounding the crime suggest TJ had a motive.

After 24 years on death row, Joseph Murphy saw his sentence commuted a week before his execution due to the extreme abuse he suffered as a child.

Enraged over his rebellious daughter's choice in men, an extremist father enlists his son in a terrifying plot of intimidation and murder.

High on a drug that fuels his paranoia, Deandra Buchanan fatally shoots his aunt, stepfather and girlfriend -- a crime he claims he can't recall.

Kenneth Foster's death sentence is commuted just hours before his execution, but he asserts that his punishment under an unusual Texas law is unfair.

In 1996, David Barnett murdered his adoptive grandparents, stabbing them over 20 times. Later, he revealed years of abuse at the hands of his father.

A murderer recounts the crime that ended one life and ruined his own. Those affected, including a police officer and the victim's family, also speak.

Robert Shafer and a friend target a same-sex couple in a robbery, but their crime spins out of control into kidnapping and double murder.

Makueeyapee Whitford claims the murder he committed was an act of self-defense against a rival tribe, but eyewitness testimonies tell a different story.

A botched drug deal is only the beginning when Candie Dominguez assists her boyfriend, Daniel Lopez, in his gruesome killing of her cousin.

Serving 20 years in prison for a bar brawl gone awry, Walter Triplett maintains that racial profiling played the biggest factor in his conviction.

Sentenced to a minimum of 109 years behind bars, Kevin Saxon considers the choices that led him to commit murder — both in and outside of prison.