BETHANY — A Cheshire woman was injured and a Shelton man was killed after a collision on Friday night. John Kwochka, 43, of Shelton was killed in the crash on Route 42 around 5 p.m., state police said. Amanda Cashmore, 21, of Cheshire, was injured. Kwochka was driving west on Cheshire Road, Route 42, while Cashmore was driving east on the same road, state police said. The two vehicles collided, causing heavy damage to the driver’s side of both vehicles. Kwochka was pronounced dead on scene. Cashmore was taken to Yale New Haven Hospital for treatment of a suspected minor injury, state police said. The accident is under investigation and anyone with information is asked to contact Trooper Beaudoin at Troop I, 203-393-4200 ext. 3016.