Construction worker accused of returning to murder 76-year-old woman during burglary
Authorities investigate the death of a 76-year-old woman found in her Arcadia backyard on April 9, 2019.

By Erika Martin, KTLA

ARCADIA, Calif. (KTLA) -- A 76-year-old woman found dead in her Arcadia backyard earlier this year was killed by a man formerly paid to renovate the home who returned to burglarize it, prosecutors said Wednesday.

Heber Enoc Diaz, 27, of Pasadena, is facing six felony counts including capital murder, elder abuse and burglary after allegedly using a hammer, jab saw and a box cutter in the April 9 slaying of Chyong Jen Tsai, the Los Angeles County District Attorney’s Office said in a news release.

L.A. County coroner’s records show Tsai died after being stabbed, beaten and strangled.

The homicide stunned and mystified neighbors after Tsai’s body was found on the lawn outside her home on the 300 block of East Forest Avenue by construction workers who came around 7 a.m. to continue a remodeling job.

In March, Diaz had been among the construction workers hired by the family, officials said. He’s accused of burglarizing the home while working there on March 19.

But Diaz was no longer employed by Tsai when he returned to the residence April 9, according to the DA’s office.

Prosecutors believe he was stealing things from Tsai’s garage when he encountered the woman and killed her.

On the day she was killed, Tsai’s SUV — a white 2005 Lexus RX 300 — was also stolen, investigators said.

Neighbors described Tsai as a sweet and gregarious woman who was a wife, mother and grandmother. Her husband was out of the country when she was killed, they said.

Diaz was arrested on April 19 and charged were filed in the case April 23. He’s facing one count of murder with special circumstance allegations that the crime was committed during a robbery and a burglary, two counts of second-degree burglary and one count each of first-degree residential burglary, second-degree robbery and elder abuse.

Prosecutors say they’re also seeking sentencing enhancements for the allegations that he caused great bodily injury to a victim over age 70 and used deadly and dangerous weapons.

Two other defendants — 33-year-old Altadena man Luis Alonso Cruz Gaitan and Isis Ondina Villalobos, 26, of Pasadena — have been charged with acting as accessories after the fact. Gaitan also faces a second charge of receiving stolen property exceeding $950 in value, the DA’s office said.

Gaitan and Villalobos were both arrested May 8 and have pleaded not guilty to their charges, court and inmate records show.

MORE: Construction Worker Accused of Stabbing, Beating 76-Year-Old Arcadia Woman to Death During Burglary - KTLA