While Netflix has Ryan Murphy busy investigating (or flat-out making up) the motives of killers like Jeffery Dahmer, the Menendez Brothers and Lizzie Borden, the streamer has enlisted director Janus Metz to tell the story of Ted Kaczynski, the math prodigy turned reclusive murderer known as the Unabomber — also the movie’s title. But Unabomber, written by Sam Chalsen and Nelson Greaves, is not some sweeping birth-to-death survey of Kaczynski’s life. It instead focuses on a young Kaczynski’s time at Harvard University, where he participated in a brutal psychological study that, in the movie’s framing, may have helped form the anarchic…