BRATTLEBORO, Vt. -- A Liberty, Ill., man charged with sexually assaulting a fellow Landmark College student pleaded not guilty last week.

Reed Stewart, 19, is being held in a local jail on $20,000 bail after Vermont State Police said he admitted to forcing an 18-year-old student to have sex with him in her college dorm room.

Landmark College Putney is one of few accredited colleges in the United States designed exclusively for students with dyslexia, attention deficit hyperactivity disorder or other specific learning disabilities.

According to the Brattleboro Reformer newspaper, Stewart faces up to three years in prison. He allegedly entered the victim's dorm room, asked her roommate to leave, then had sex with the victim, police said.

The victim, who suffers from a learning disability and has the mentality of a 10- to 12-year-old girl, contacted her parents and campus security after the incident, police said.