Daniel Penny’s lawyers argue he protected others, prosecutors say he ‘went too far’ as NYC subway manslaughter trial begins CNNProsecutor says veteran's subway chokehold went 'too far.' Defense says his 'courage' helped others The Associated PressDaniel Penny trial: Marine veteran's defense says Jordan Neely's four words justified deadly subway chokehold Fox NewsIn Subway Chokehold Trial, Lawyers Spar Over Daniel Penny’s Chokehold The New York TimesDaniel Penny tells police 'I put him out' in never-before-seen video as subway chokehold trial gets underway ABC News