Paris Matthews (6 of Hearts, Florida)

In the spring of 2013, Paris Matthews was enjoying an evening at home when he heard a knock at the door. Someone on the other side called out their name – but Paris knew that was impossible. Seconds later, before he could piece together why someone was lying … Paris was shot, and the years-long search for his killer began. Investigators have had to weed through rumors, finger-pointing, strange text messages, and a CODIS hit that wasn’t what it seemed, but it might take someone out there to come forward for this mystery to finally be solved.