Southern California authorities on Tuesday were investigating the death of a 29-year-old woman who they say was killed during a sexual assault.
Firefighters responded to the 1300 block of Riverstone Court in Hemet about 3:20 a.m. Sunday to help an unconscious woman, according to the Hemet Police Department.
When crews arrived, they found the woman dead inside and called police.
"They discovered some things that just didn't look right, some suspicious circumstances, so they notified the Hemet Police Department," Hemet Police Officer Dean Evans said.
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Evidence at the scene indicated the victim, identified as Amanda Ulloa, of San Jacinto, was "killed during the commission of a sexual assault," officials said.
A neighbor described Ulloa as a sweet person.
"My wife was sick with cancer, and she always took time out to ask how my wife was doing," neighbor Dan Morgan said. "She was a sweetheart to us."
Detectives later arrested 28-year-old Henry Joya, of Hemet, on suspicion of murder, rape, sodomy and sexual penetration with a foreign object, police said.
Joya was being held in lieu of $1 million bail, according to jail booking records.
Additional details were not immediately available.