Arthur O’Keefe, 76, vanished from his Lewiston, California, residence on January 4, 2016. He was last seen at home; family raised the alarm when he became unreachable and asked for a welfare check. Deputies from the Trinity County Sheriff’s Office visited the house on January 8 and found no sign of him. His vehicles, personal belongings and medication remained at the residence.

Authorities describe O’Keefe as about 5 feet 10 inches to 6 feet 0 inches, 180 to 206 pounds, with gray hair and hazel eyes. He had a medical condition that required regular medication, which was not with him when he disappeared. Tracks on the property concerned investigators and led them to suspect foul play; extensive searches and community efforts turned up no clues.

His disappearance remains unsolved and he is still considered missing under suspicious circumstances. If anyone has information about Arthur O’Keefe or saw anything in Lewiston around early January 2016, please come forward.