3.2K views · 18 reactions | Are serial killers made or born? Donnie Wahlberg hosts Very Scary People, Sunday night at 9 ET/PT on HLN. | HLN | Facebook

9.8K views · 60 reactions | Fans of the Netflix series "Mindhunter"...

EXCLUSIVE 2-MINUTE SNEAK PEEK Tonight 9/8c: #VeryScaryPeople is all new on ID with an investigation into the terrifying, methodical actions of an alleged #serialkiller who has admitted to, and then recanted, his stories detailing dozens of kidnappings, rapes, and murders. Hear from his twin brother, parents of one of his alleged victims, and Larry Hall himself in passages from his personal journal. | Investigation Discovery

11K views · 44 reactions | Was Aileen Wuornos acting in self defense when she killed at least 7 men between 1989 and 1990? "Hardly," says attorney David Damore. He prosecuted Wuornos leading to her execution in 2002. Catch the HLN original series "Very Scary People" hosted by Donnie Wahlberg. Sunday at 9 p.m. ET/PT on HLN: https://cnn.it/2KcduJl | HLN | Facebook

25K views · 152 reactions | In the early ‘90s, Clarence “Preacher” Heatley ruled New York City with an iron fist, taking down anyone who stood in his way—including rival drug dealers. The streets grow even deadlier when a notorious Harlem dealer becomes his next target. Discover the chilling rise and fall of a sadistic drug kingpin on Very Scary People. Watch Sunday at 9/8c on ID. | Investigation Discovery | Facebook