Denver artist Raverro Stinnett was at Union Station after attending a LoDo art opening, waiting for a train home early on the morning of April 20, 2018, when he was confronted by four security officers who threatened him and challenged him to a fight. Two of the guards, employed by contractor Allied Universal Security Services, led him to a bathroom and brutally assaulted him while another kept watch; all three later pleaded guilty to criminal charges. Stinnett was left with permanent brain injuries that, according to a lawsuit filed last week, “have completely upended his life.”