The Los Angeles County Sheriff’s Department is seeking the public’s help in locating an at-risk missing person last seen in Santa Clarita during the early hours of July 4. Tristan James Clark, 44, was last seen on the 24000 block of Golden Oak Lane at 1 a.m. Thursday. He is listed as a 5-foot-7 white man weighing 200 pounds, with blonde hair and blue eyes. He also has a tribal band tattoo on his right arm and was last seen wearing blue and black plaid boxers.