S33 · E21

Deadly Obsession

Apr 4, 20251h 23m

Mike Sisco and his fiancé Karen Harkness are found shot to death in their Topeka duplex in 2002. A years-long search for the killer and three criminal trials over two decades reveals strained dynamics within one victim’s family.

‹ E20 All episodes E22 ›

Deadly Obsession

Episodes

The Butterfly

Wrong Turns

Down the Rabbit Hole

The Night of the Nor'easter

Deadly Omission

After the Halloween Party

The Menendez Brothers: Chance at Freedom

Deadly Dance

The Killer Among Them

The Man of Many Faces

A Little Patch of Perfect

Deadly Mirage

The Devil Wore White

Under the Bay Bridge

Return to the Lake

A Walk Through the Woods

The Haunted House Confession

Lori Vallow Daybell: The Jailhouse Interview

Deadly Entanglement

Poison Twist

Deadly Obsession

The Last Mile

The Widow of Woodland Hills

The Pin at Apartment 210

The Devil’s in the Details

Murder in Minot

Secrets of the Sliding Door

The Terrible Night on King Road

Sean Combs on Trial

Center of the Storm

Sean Combs: The Insiders Speak

Secrets of Exam Room 9

The Night of the Audition

The Betrayal of Sandra Birchmore