Nathan Tubbs

Nathan Tubbs is the main antagonist in the episode Doubt in the season three.

Biography
Tubbs was born on February 22, 1969, and lived in Flagstaff, Arizona. He married a woman named Cheryl, and thus having a daughter named Sam. He applied at the Police Academy, but his entry was disapproved due to his failures in the psychological examination, which results diagnosed him as having a bordeline and antisocial and sociopathic personality. Five months later, Tubbs gets a job as a security officer on the university campus. However, three months later Tubbs assaulted Cheryl, and she lost her divorce and gained custody of Sam, with Tubbs being rejected by Cheryl and losing custody of Sam. With that Tubbs became an alcoholic and became addicted to pornography.