Sheriffs in Ventura County, CA say a body has been found in Lake Piru, where former Glee star Naya Rivera disappeared last week. The body was found Monday morning and has not yet been publicly identified. A press conference is planned for later today. The 33-year-old Rivera is believed to have drowned after diving into the lake on Thursday. Her 4-year-old son, Josey, was found alone on a pontoon boat. This is a developing story.