Using their special skills, hey eliminated the defensive perimeter, blew up a tank (Dukes punched and blocked the barrel of the tank with an explosive round), and killed guards on the 12th floor after emerging from an elevator.Although Xavier begged her to trust him because he could help her control her dangerous power, Jean""s dark-skinned, glass-eyed Phoenix resisted listening to her former mentor, snapped and released a gigantic telekinetic blast and storm, causing objects to fly around.) for its opening in two weeks.Two other counselors working around the grounds included:Bill (Harry Crosby, Bing Crosby""s son) at the boathouseBrenda (Laurie Bartram) at the archery rangeMeanwhile, Annie hitch-hiked another ride in a green Jeep by an unseen driver, who eerily passed the turn-off for the camp.He finally was able to apprehend the driver Sytsevich and constrained him in a web-straitjacket, and then grabbed the last of the vials before strolling away.During a search of the house, (footage that Debra initially considered leaving out of the final edit of the film), Debra""s undead brother Billy jumped on her back - and was killed when Professor Maxwell, skilled in archery, used a bow and arrow to shoot him in the head.