Chicago authorities are seeking the public's help in identifying four individuals wanted for questioning in connection with the fatal beating of 25-year-old Xander Kazanowski, a former Barrington High School wrestler who was found unresponsive with severe head injuries on March 24. The former wrestler was forcibly removed following a fight at the Tune Up Bar and was later discovered with critical head trauma. He remained in critical condition at the hospital and died on March 28. Police are now looking to speak with four individuals in connection to the homicide and have released descriptions of the individuals and surveillance footage showing them near the scene.