55K views · 412 reactions | Crystal just wanted to help her sister chase a dream—but when the two of them were invited into the Playboy world together, the opportunity came with more than they ever bargained for. Watch #ThePlayboyMurders Monday on ID. | Investigation Discovery | Facebook

343K views · 3.6K reactions | Cold case cracked. Justice delivered. In the early '90s, Phoenix was shaken by the brutal murders of Angela Brosso and Melanie Bernas—two young women attacked while biking along the Arizona Canal. For over 20 years, the case remained unsolved, until forensic genealogy led investigators to a man known locally as the “Zombie Hunter.” Watch "On The Case with Paula Zahn" on ID | Investigation Discovery | Facebook