Neighbors said the victim was arguing with another man moments before the shooting happened. The victim managed to drive his car around the corner and hit a parked car before slowly rolling down the street.
One homeowner, who did not want to be identified, said she heard the gunshots.
"There was a car that came slowly to a stop at the mail box," the homeowner said. "I told my kids to get inside. My fiancé came up to the gate to see if anyone was in (the car) and there was a guy slouched over."
Inside green Mercury sedan was the body of Alfredo Sanchez Garcia, 23, and his dog. Sheriff's investigators say both had been shot to death.
"He looked like a young guy," the homeowner said. "I was watching the whole thing when they brought him out of the car."
The shooting happened a time when most children in the neighborhood are outside playing.
"It's scary and it's really sad because any bullet doesn't have a name on it," the homeowner said. "It could hit anyone, any person, any kid or anything."
Neighbors said this is the second murder to take place on their street in a year.
Anyone with information related to the shooting is asked to call sheriff's investigators at (951) 955-2600.