the driver, rob chamberlain, said he had no idea why they were targeted. >> our first impression was maybe it was a drug deal gone bad, and somebody was following this young man and something had happened. >> we really pressed the issue, were you targeted for some apparent reason? were you involved in something? do you have any enemies? have you been involved in anything that would have led somebody to target you? >> not far from the site of the shooting, police found a shell casing on the side of the highway. >> the bullet probably came from another vehicle that was traveling in the same direction as our victim vehicle. >> the casing was from a high-powered assault-style rifle, a heckler & koch, or hk-91. police wondered whether the shooting was intentional or a random act. >> they were concerned that somewhere there was a shooter out there, not knowing what had happened or what led to it, there was just somebody out there who randomly shot a teenage boy on the road. >> it's kind of scary to think that you could be driving down the road and get shot. >> it was very tense at the time

on an october night in 1990, rob chamberlain and his friend were driving along glenn highway in anchorageaska, headed to a local restaurant. as he approached the exit ramp, chamberlain heard a loud crack. he looked back and saw a hole in his rear window. then he saw his ,