Sean Sidi went missing from San Francisco on Tuesday, May 21. He went to visit a
former high school teacher sat 150 Oak Street. Video surveillance shows Sean visiting around 11:40 a.m. Sean last spoke to his dad by cell phone at 1:34 p.m., where he told him that he was catching the bus to go to the park. Sean’s phone went dead at 2 p.m. He has not been heard from since.
Sean suffered a severe traumatic brain injury (TBI) several months ago and his family states he is medically very fragile. Sean has a history of informing of his whereabouts so for him to be out of contact is out of character for him. Plus, he rarely leaves the house for long periods, and when he does he is home by 6 p.m.