After bravely helping a family of ducks cross a busy California freeway, a dad was killed by a car.

In Rocklin, California, on Friday night, Casey Rivara, 41 and father of 2, parked his car by the side of the road and guided a mother duck and her ducklings across the intersection of Park Drive and Stanford Ranch Boulevard.

Tragically, the man was struck by a female motorist who was only 17 years old and killed while his defenseless kids looked on from the family car.