A man discovered dead in an Idaho church more than four decades ago may have a connection to the unsolved 1982 cyanide ...

A man known simply as the "Unknown Wanderer" has been identified. Ada County officials say he could be connected to one of ...

And it's all coming to you in a new 'Unsolved Mysteries' documentary.

Yellowstone County investigators said they solved the 1978 killing of 16-year-old Corina Contreraz by using DNA taken from a ...

BOISE — Idaho law enforcement believe a man found dead after poisoning himself in a Boise church 44 years ago could have a connection to the 1982 Tylenol killings, an unsolved string of homicides that ...

The 1997 murder of a man in Ogden has finally been resolved after a man incarcerated in Iowa for another unrelated murder confessed to it.

He was found dead inside a Boise church in December 1982. Reports say the man died by using cyanide. Investigators worked ...

SALT LAKE CITY — A newly formed cold case unit within Utah's State Bureau of Investigation has solved its first case, identifying a man whose body remained a mystery for more than 14 years, through ...

In this video, a scuba diver uncovers a crucial piece of evidence in a river that helps solve a 9-year-old cold case. The ...

The hardest part of a cold case isn't always waiting. It's wondering whether the waiting will ever end. For more than 40 years, John Warren's family had no answers about who killed him. For the loved ...

Michigan State Police have launched a new website to highlight cold cases around the state and to help the public solve them.