Suspects Two sex convicts charged with raping and murdering four Los Angeles-area women were wearing GPS monitoring bracelets for having assaulted children when they allegedly committed the serial killings that began last fall, police said Monday. Steven Dean Gordon, 45, and Franc Cano, 27, are registered sex offenders on parole for sexual acts with children younger than 14. The two transients were arrested Friday near an Anaheim trash-sorting facility where the naked body of 21-year-old Jarrae Nykkole Estepp, of Modesto, was found on a conveyor belt in March. They were charged Monday with raping and killing her and three other women living in Orange County, all of whom had been involved in prostitution. Police would not say whether the bodies of the other three -- Kianna Jackson, 20; Josephine Monique Vargas, 34, and Martha Anaya, 28 -- have been found. Police said at a news conference Monday afternoon that they were "confident" there is a fifth victim and poss