Glee star is currently missing in southern California. According to multiple news outlets, including , the Ventura County Sheriff's Office has been conducting a search (which will resume this morning) after Rivera apparently vanished from Lake Piru, where her four-year-old son was later found alone in a boat. Per the , Sheriff's Capt. Eric Buschow said in a news conference Rivera rented a pontoon boat around 1 p.m.