St. Clair County Prosecutor Mike Wendling said investigators are considering the possibility there was a second suspect in the slaying of Karen Umphrey.
If the defense intends to plead insanity in a criminal case, Michigan law requires the attorneys to give the court at least 30 days notice so the defendant can undergo a mental health examination.
St. Clair County Prosecutor Mike Wendling said in his petition that he personally knew the victim, and several staff members know the owner of Roche Bar.