A CANNIBALISTIC killer is in jail 30 years after he killed a woman and sent a sick sympathy card to her family.
A new docuseries examines serial killer Hadden Clark, who murdered 23-year-old Laura Houghteling at her Maryland home.
Houghteling disappeared from her home in Bethesda in October 1992.
Clark was working as a gardener for Houghteling’s mom, Penny, at the time.
Police first questioned Clark about Houghteling’s disappearance when her brother noted he avoided conversation on the day that Houghteling’s coworkers reported she didn’t show up to work.
Clark broke down crying after the questioning, where he provided an alibi for the night Houghteling, a Harvard graduate, disappeared.
He mailed a chilling …