"Derek! What happened?" John was tense as soon as he heard the shot, listening for any clue as to what was going down before they ran out into the thick of it. Douglas Hammond's phone call was the last thing he was expecting. But, he couldn't believe the two weren't connected. An accident?
He could hear Vance on the phone as he left, telling Brian what Douglas had said. That Marty was there wasn't surprising. If something had happened, it was right Marty was there. But, John's focus went to Derek as soon as he saw him. Crouching down, he felt for a pulse and sighed in relief when the one he found was steady.