Murders are always disturbing, but some are even worse than that. These killings were brutal, almost unimaginable in their depravity. The crimes horrified communities and stumped police - leaving questions that lingered for decades afterward, as years passed without an arrest or even a credible suspect.It's the curious details of a murder case that transfix true crime obsessives. Some have elements that are particularly violent, bloody, gruesome, and unsettling. Worse, some slaying remain unsolved, meaning that the perpetrator disappeared into the night after the deed was finished. From the infamous THE SINCLAIR MURDERS case to FLORIDA LOTTO MURDER MYSTERY, from "THE KELLEY CANNON STORY" and GEORGIA TANN PEDOPHILE to the brutal MURDER OF CRYSTAL FAYE TODD, here's a collection of mysterious, unsolved murders we can't stop talking about.These stories about unsolved murder cases will creep into your brain and never leave.Today, one-third of all American murders go unsolved. And it's murder cases like these that haunt us with the thought that the killer was never caught and could still be walking among us.Throughout American history, in fact, there's been no shortage of unsolved murder cases that are as creepy as they are baffling...Everybody loves a good mystery. But what happens when a mystery never has its satisfying ending - that Scooby-Doo unveiling of the culprit?