FBI's Missy Peregrym broke her silence after the hit CBS series took a turn with a shocking onscreen death. During the Monday, March 16, episode of FBI, Maggie (Peregrym) had to face off with her first arrest - serial slasher Ray DiStefano (Matthew Rauch) - who kidnapped her sister, Erin (Adrienne Rose Bengtsson). Maggie ultimately wasn't able to save her sister, whose body she found after thinking she would still be alive. "I was scared to do this script.