Found information at the Golden Gate site:
http://www.goldengatefields.com/News...rse+racing.htm
ALVARADO INJURED IN SPILL -- Jockey Frank Alvarado sustained a mild concussion, a neck sprain and a lower back sprain when his mount, Karaoke Jeannie, fractured a leg and fell in the stretch run of the third race. Karaoke Jeannie was humanely euthanized.