A male victim reported that a male suspect punched him in the face while they were standing on the platform. The victim suffered several small cuts to his face as a result of the battery. The suspect was placed under citizen's arrest by the victim, but also determined to be in need of psychiatric evaluation. He was also found to have a $10,000 warrant for vandalism. The suspect was issued a prohibition order and placed on a psychiatric hold, with a criminal hold for the warrant and the battery charge. The victim was treated by paramedics at the scene and released. Station video will be requested.