“I like to think that your mind might be blown.”

David Dastmalchian is no stranger to playing serial killers, from Kyle Slade in Syfy’s 12 Monkeys series to real-life murderer Albert DeSalvo in Boston Strangler. But according to Dastmalchian, his new role in Showtime’s Dexter: Resurrection “is the most fun I’ve ever gotten to have portraying a serial …