COLORADO, USA — Over 12 days in January 1984, someone with a hammer unleashed unspeakable violence in two quiet Denver suburbs — killing four people, beating two others so savagely it was shocking they survived, and raping several of his victims.

Then the attacks just stopped, the police investigation stalled, and those left behind wrestled with an insidious kind of fear and so many questions — questions that haunted them for more than three decades. Who attacked them? Who murdered their loved ones? Is the person still out there? Will the person come back?

The story of those assaults, the search for a killer, and the anxiety that gripped the survivors and altered life in the Denver metro area is the subject of a new 9Wants to Know investigative podcast.

RELATED: A timeline of the January 1984 hammer attacks in the Denver area

RELATED: Nevada inmate wanted for murder after DNA ties him to notorious 1984 Colorado cold cases

“BLAME: The Fear All These Years” takes listeners back to the attacks and tells the stories of those most deeply impacted —  the survivors and the loved ones of the dead. It follows the police investigation through years of cold-case frustration, forensic breakthroughs and the latest developments.

It’s a story that will unfold in three parts.

The first part consists of five episodes. The first episode is available now; a new episode will be released each Wednesday.

The second part of the podcast will be available in early 2020.

It is anticipated the third part will roll out later in 2020 and follow new developments in the case.

>> Listen to episode 1 below

Subscribe and listen

“BLAME: The Fear All These Years” is available at Apple Podcasts or your favorite podcast app.

SUGGESTED VIDEOS | 1984 Hammer Murders