I AM A KILLER

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

Convicted for killing his grandmother, Rex Groves insists he no longer holds murderous thoughts towards his family. But their trust isn't easily won.

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

Higinio Gonzalez killed a store clerk during an armed robbery at the age of 16. He swears it was an accident, but one county attorney isn't so sure.

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

Sentenced to life without parole for Jason Johnson's horrific murder, Gary Black says he has no regrets, while Jason's family finds purpose in tragedy.

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

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.

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.

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.

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

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

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.

Toby Williams murdered Deborah Moore and shot her husband, John, in a cruel 1984 robbery for which he has been on death row for nearly 35 years.

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.

After an unsuccessful attempt to kill his father, drug user Charles "Billy" Armentrout later murdered his grandmother and was sent to prison for life.

Convicted murderer Wayne Doty admits his guilt but requests that his execution be carried out by electric chair, a method no longer used in Florida.

Teenage drug abuser Joshua Nelson murders a friend in cold blood to steal his car, but other shocking motivations for the crime emerge at his trial.

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.

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.