A missing autistic teenager was located after he spent the night out in the cold during one of the the coldest nights in ocala. Fifteen year old William "Billy" Snyder left his home in southwest Ocala Sunday after noon before any one could notice. His caregivers called police and everyone searched for him through the night. Billy walked all the way from his house, seven miles to an Ocala Wal-mart and then to the train tracks. He slept there overnight, only having his jacket to protect him.