TL;DR: HBO’s new true-crime documentary series “A Killer Story” premieres tonight, Sept. 10, at 9 p.m. ET on HBO and HBO Max.

The new HBO docuseries A Killer Story details not just a crime, its victims, and the convicted perpetrator, as many ...

HBO is digging into a bizarre murder case that played out across more than two decades and three separate trials. […] ...

But that doesn't mean journalist Joe Sexton, director Matthew Galkin or producer Joshua Levine will pronounce her innocent in ...

The new HBO docuseries 'A Killer Story' explores one couple's obsession with proving a convicted murderer's innocence ...

The new true-crime show about a double-murder already has viewers "obsessed." ...

HBO's new docuseries A Killer Story revisits the 2002 murders of Mike Sisco and Karen Harkness and the decades-long case ...

Eileen and Keen Umbehr were convinced the wrong person was convicted for double-homicide. After sending Pulitzer-winning journalist Joe Sexton 2,714 emails about it, he agreed to investigate – and it ...

In HBO’s fantastic three-part true crime docuseries “A Killer Story,” a man and his girlfriend get viciously murdered. The ...

In HBO’s gripping new docuseries A Killer Story, a crusading couple become convinced that woman accused of murder is innocent ...

Eileen and Keen Umbehr spent decades seeking a different verdict to the answer of who killed Karen Harkness and Mike Sisco in ...

HBO's A Killer Story revisits a double homicide involving a couple named Mike Sisco and Karen Harkness, who were found shot to death in bed while they slept in Karen's home in Topeka, Kansas, in July ...