The Hillz is a 2004 film written and directed by Saran Barnun and starring Rene Heger, Jesse Woodrow, and Paris Hilton. It centers around four kids from Beverly Hills who form a ruthless gang. The entire film features Steves Woodrow feeble attempts to obtain Heather Smith Hilton as his girlfriend, and a ruthless rebel child with some clear psychological disorders named Duff and his friend T trying to earn respect in their gang.
The end of the movie has Steve and Duff driving along the street when a couple of young kids throw something at Duffs car causing the two get to out of the car and chase after them. As they get near the kids, one of them turns, pulls a gun, and shoots Duff and Steve, killing them both.
Source: Wikipedia