UPDATE with PICTURES: Okla. authorities: Woman, 4 kids apparently slain

The Oklahoma State Bureau of Investigation says Joshua Steven Durcho, 25, shown here in this March 29, 2004, file photo provided by the Oklahoma Department of Corrections, is being sought as a suspect in a quintuple killing Monday, Jan. 12, 2008, in El Reno,Okla. Investigators discovered the bodies of Summer Garas, 25, her daughters Kirsten Rust, 7; Autumn Rust, 6; Evynn Garas, 3; and son, Teagin Rust, 4, in their apartment.(AP Photo/Oklahoma Department of Corrections)