As he was working in the Greendale Mines, he encountered the demon, Apophis, and it possessed him. The demon eventually drove him insane which lead to his brother to become his caretaker with Jesse remaining in a bedridden, catatonic state.
Throughout Chilling Adventures of Sabrina
He's cared for by Susie and his brother until Sabrina Spellman does an exorcism to free him from his demon; however, he's murdered by Madame Satan. He is taken to Spellman Mortuary where his body is taken care of.
Due to him being a host for the demon, Apophis, none of his true personality had a chance to be revealed. Although Jesse brother believed that something snapped in him after one of his shifts at the mines, which suggests that Jesse was an mentally sane person prior to his possession.
- See also: Category:Images of Jesse Putnam