For Santa Anita’s low-paid workers, horse deaths bring pain and fears about the future

Dagoberto Lopez begins each workday at Santa Anita Park at 4:30 a.m., checking on the five horses under his care: War Beast, Of Good Report, Carnivorous, Kissable U and Juggles.

He checks their temperature. He makes sure they’ve had enough to eat. He gives them sponge baths. On race days, he braids…