(EL PASO COUNTY, Colo.) — The El Paso County Sheriff's Office (EPSO) is looking for an at-risk 16-year-old who was last seen in Security on Wednesday, Nov. 20. According to EPSO, 16-year-old Mateo walked away from his home at 2 p.m. on Wednesday near Fay Drive and Harvard Street, in a neighborhood northeast of Mesa Ridge Parkway and Highway 85/87. Courtesy: El Paso County Sheriff's Office EPSO said Mateo is 5'9" tall, weighs 165 pounds, and has brown hair and hazel eyes. He was last seen wearing a green sweatshirt with Tom and Jerry on it and black sweatpants. EPSO said Mateo is autistic and takes medication regularly. If you have seen him or know where he is, you are asked to contact EPSO at (719) 390-5555.