Rex tells Bo, Roman and Hope his theory: the next person who threatens the killer will die - the cop who comes close to cracking the case will be a target! Victor warns Nicole that if and when he brings Chloe back to town, her chance with Brady is gone; Sami blurts out that that Tony is not really Rex and Cassie's father; and Caroline is still trying to warn Celeste that the killings are far from over – and that Marlena will be the next victim – killed by her own husband, John…