Jeremy Lusk (November 26, 1984 February 10, 2009 was an freestyle motocross rider from San Diego, California. He was part of the riding group Metal Mulisha. On February 7, 2009, Lusk crashed while attempting to land a "Hart Attack backflip" in a freestyle motocross competition in San Jose, Costa Rica. On February 10, 2009, he entered into cardiac and respiratory failure at Calderon Hospital in San José, Costa Rica. He sustained head injuries, severe brain damage and a possible spinal cord injury.