ST. CHARLES, Mo. (AP) — A couple from the St. Louis suburb of O'Fallon is scheduled to be sentenced Friday for keeping their autistic son inside a makeshift cage.A jury last month recommended seven years in prison for 45-year-old Terry Smith and his 44-year-old wife, Victoria. Both were found guilty of child endangerment.An anonymous call tipped authorities in December 2010, when the boy was 6.When police, paramedics and a case worker responded, the boy's grandmother was watching him and five siblings. Authorities say she led them to the basement, where the autistic child was in a 3-foot-by-6-foot crib covered with a plywood top and held together with bungee cords and zip ties.Investigators said he was naked and sitting in feces and urine.