The conflict escalated until the younger man struck the victim in the head with a screwdriver, the officers said. He is no longer hugely useful in either a playing or promotional capacity, but one cannot simply discard him. Playing a day after 22-year-old sister Chyna Thomas was killed in a car accident in their home state of Washington, Thomas led the top-seeded Celtics with 33 points. Sports leagues could look to the NBA to see how to handle the issue.