Matt Jacobs gets engaged to Alex Peterson, who is around the same age as his teenage son. This causes eyebrows to raise among their friends and family.

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Each hour-long episode of “Unknown Serial Killers of America” profiles the horrific stories of these unconscionable criminals, and delves into what transformed them into evil monsters. With first-hand ...

Unknown Serial Killers of America is produced by Pantheon Media Group. Steven Michaels, Jodi Flynn, Andi Walker Ochoa, Ariel Brozell, Steffanie Siebrand, Elvia Van Es Oliva and Haylee Vance ...