I AM A KILLER — Season 2

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.

Remorseful about the crime that sent him to prison for life, Leo Little tells the story of the murder he committed in 1998. He is now a minister.

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.

From a women's reformatory in Ohio, Linda Lee Couch talks about the murder of her husband, Walter, in 1984, a killing precipitated by years of abuse.

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.

Kansas native Cavona Flenoy agreed to a date with a liquor store clerk, but the evening took a deadly turn when he tried to assault her.

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

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.

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.

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.