Scott D. Pierce: Despite appearances, ‘Mindhunter’ is about murderers, not Mormons

Jonathan Groff doesn’t play a Mormon in the new Netflix series “Mindhunter,” he just looks as if he’s playing one.Set in 1979, “Mindhunter” (which starts streaming Friday) centers on Holden Ford (Groff, “Glee,” “Looking”), a young FBI agent who becomes a serial killer profiler before the terms “serial killer” and “profiler” were in use. About 16 minutes into Episode 1 (of 10), Holden meets a young woman in a bar