When officers arrived, they found CPR was being administered to Robert Montano. Fire officials transported him to Saint Bernadine's Medical Center, where he was pronounced dead by emergency room personnel.
Deputies said some sort of altercation took place between Montano and one or more members of his family. Homicide detectives were investigating the case.
If you have any information regarding this case, you're urged to contact police at (909) 387-3589.