Cops released surveillance photos of a trio of brutes wanted for punching, repeatedly stabbing and robbing a man on a Bronx train last month. The three muggers, believed to be in their 20s, remain on the lam after the violent May 11 attack, which left 39-year-old Alberto Abreu Contreras knocked unconscious on the E. 167th St. subway station platform in Highbridge. Surveillance photos show one ...