Sheriff's spokesman Jim Amormino said Sunday that Dean Patrick Maldonado was shot by a 51-year-old guest of the woman who owned the home in Rancho Santa Margarita.
Amormino said Maldonado entered the home through a rear sliding door late Saturday night, and the shooting occurred sometime afterward.
He said the circumstances of the shooting were not clear.
Maldonado's daughter Megan Maldonado says the home belonged to her father's girlfriend.
Property records show that the homeowner is Linda Shaw-Sprowl, a personal trainer.
The name of the suspect has not been released.
