St. Cloud Police need help finding the perpetrator in an alleged sexual assault that happened over the weekend near the St. Cloud State Campus. It happened Saturday between the hours of 6:00 and 7 am in an alley within the 500 block, between 6th and 7th Avenue South. Police say a woman was knocked to the ground by a man who then attempted to take her pants off while holding her on the ground. The suspect is described as a taller white male with a muscular build, medium dark hair. Police say he was wearing blue jeans and a long sleeve shirt at the time of the incident. Anyone with information is asked to call St. Cloud Police at (320) 251-1200.