A mentally disabled Glen Burnie man who had compiled local elementary school schedules and a list of 100 potential child victims before his arrest last year was sentenced this week to 5½ years on house arrest for molesting a child a decade ago.

James Matthew Thomas, 29, told a therapist he was having thoughts about molesting and killing a specific 8-year-old girl who lived in his neighborhood. He also had written journals that graphically described sex acts with children, though police said they were apparently fantasies and there's no evidence that he actually harmed any children after 1997.

Thomas confessed to molesting two...