Scott Peterson appears at a hearing in Stanislaus County Superior Court September 2, 2003 in Modesto, California. The preliminary hearing for Peterson's double-murder case is set for October 20, 2003.Laci Peterson’s mom Sharon Rocha is speaking out against her former son-in-law. 
After Scott Peterson—who was convicted of murdering his pregnant wife Laci and the pair’s unborn son Connor in…