LOS ANGELES (AP) — Four tourists have testified about how their fun day at Los Angeles' Venice Beach boardwalk was transformed into a scene of horror as a car plowed through a summer crowd.

The testimony was presented Tuesday to a judge who will decide whether a transient from Colorado must stand trial on murder and assault charges.

An Italian woman on her honeymoon was killed and 16 other people were injured in the Aug. 3 incident.

One witness said he saw 38-year-old defendant Nathan Campbell behind the wheel and smiling as he plowed into people.

Campbell has pleaded not guilty and his attorney has called it a horrible accident.