A man with Down Syndrome is found by the police at the crime scene. The investigation is uncertain about the participation of this man. Was he the murderer or only a witness?A man with Down Syndrome is found by the police at the crime scene. The investigation is uncertain about the participation of this man. Was he the murderer or only a witness?A man with Down Syndrome is found by the police at the crime scene. The investigation is uncertain about the participation of this man. Was he the murderer or only a witness?