The mustache mafia is setting up shop in a new studio in North Carolina! To give them time to finish decorating the new studio -- and bury the bodies of the previous tenants -- we present to you an episode pulled from the darkest depths of the Evidence Locker.

Between 1990 and 2010, the remains of at least 45 young men have been found in or near bodies of water in the Midwest. Near each alleged victim, investigators discovered graffiti depicting a smiley face. Was the presence of the grinning image simply a coincidence, or the calling card of one of the most prolific serial killers in US history? The answer may surprise you...

Learn more about your ad choices. Visit megaphone.fm/adchoices