Valenzuela is a sixth grade student at Rancho Vista School in Palmdale, Westside Union School District Superintendent Regina Rossall said. The district sent a mass recorded message to homes of all students district-wide requesting assistance locating the boy, Rossall said. Fliers with pictures of Valenzuela were given to all district students to take home, Rossall said. Rossall said district officials interviewed classmates seeking information about Valenzuela’s whereabouts. Rossall said she spent most of Friday morning with Valenzuela’s mother distributing fliers. “(The mother’s) doing remarkably well, but she’s certainly very worried and concerned about her son,” Rossall said. Anyone with information about Valenzuela’s whereabouts is asked to call Lancaster sheriff’s station (661) 948-8466. QUARTZ HILL – Sheriff’s deputies are seeking public assistance in the search for an autistic child with diminished mental capacity, authorities said Friday. Jason Valenzuela is 13-year-old Hispanic boy who authorities say has the mental capacity of an 8-year-old. Valenzuela is 4-foot-11 and weighs 85 pounds. He was last seen at approximately 3 p.m. Thursday riding a red BMX-style bicycle near 47th Street West and Avenue L-8 in Quartz Hill, authorities said. He was wearing a light blue t-shirt and brown shorts, and was carrying a clear plastic “air soft” style rifle. Sheriff’s deputies established an outdoor command post Friday at intersection where Valenzuela was last seen.