Man arrested after three people were shot in his home near Lodi in June

A 25-year-old man was arrested after three people were found shot to death in a home near Lodi in June, the San Joaquin County Sheriff's Office said.

Steve Guerrero Jr. faces charges of firearm-related murder and burglary, the sheriff's office said Monday.

Officers discovered the victims' bodies in what San Joaquin Sheriff Pat Withrow described as a “horrific location” when they were called to a welfare check at the East Mettler Road home around 6:30 p.m. on June 8.

The sheriff's office identified the three as a mother, father and their 45-year-old son. Their names are 60-year-old Joe Pena, 69-year-old Kim Huynh and 45-year-old Alfred Nguyen.

Family members said they had not been able to reach the three for a week.

Investigators believed it was a targeted shooting and did not inform the media so as not to “compromise the integrity of the investigation,” the sheriff's office said on Facebook.

Withrow also declined to provide details on how they were able to link Guerrero to the crimes, but reiterated that they were “very certain” that he committed the crimes.

“We were able to quickly gather some evidence that showed this was not a random act. It appeared to us to be a targeted act of violence committed by someone who knew the family,” Withrow said.

It is not known how Guerrero knew the family.

When asked if a weapon was found at the crime scene, Withrow said, “I can't answer that at this time.”

Guerrero was arrested Sept. 14 and is charged with three counts of murder, one count of burglary and possession of a weapon, Withrow said. He is scheduled to appear in court for arraignment at 1:30 p.m. Tuesday. Details of the man's thefts were not released.

Withrow said that at the indictment, prosecutors would go through all the charges against Guerrero and decide which ones to pursue.

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