A Gainesville man convicted of assault was given a 31-year sentence to be served on probation in a residential treatment facility, according to court documents. Demetrius Render, 45, was convicted in September on the charges of aggravated assault with intent to rape and false imprisonment. He was accused of assaulting a 16-year-old high school student on Sept. 3, 2016, at the Green Street Dairy Queen, according to authorities.