This was Bradley Center v. Wessner, decided in 1982. This case revolved around the murder of Wessner's mother by Wessner's father after he was granted a weekend pass to leave his voluntary-admission to the Bradley Center mental health hospital. The courts found that the hospital had a duty to take reasonable steps to limit the mobility of a person whom they were reasonably certain would do bodily harm to others, should he or she be allowed to leave the facility.
