ALHAMBRA — A judge sentenced a Alhambra man and former Huntington Park school teacher to 69 years to life in prison for the murder of his estranged wife in 2008.

Alhambra Superior Court Judge Jared Moses handed down the sentence to Aaron Leonel Raigoza, 37, who pleaded guilty last year to shooting 32-year-old Ana Maria Acosta to death in front of her parents’ house in Monterey Park

“Raigoza, who has been tracking the victim using a global positioning system device, ambushed her as she sat in her car on Feb. 4, 2008,” Los Angeles County District Attorney’s officials said in a written statement. “Acosta was shot five times.”

Raigoza and Acosta were in the midst of a divorce when the murder occurred, investigators said.

“(Raigoza) attacked her within 10 minutes of the victim reporting a child custody issue to the Monterey Park police,” the statement said.

He was then working as a teacher at City of Angels independent study school in Huntington Park, authorities added.

In addition to first-degree murder, Raigoza also pleaded guilty to the special allegation that he personally fired a gun in the killing, officials said.

Prosecutors said Raigoza also pointed a gun at a man who came out of his house after the shooting in the 500 block of South Russel Avenue in Monterey Park.

Detectives arrested Raigoza nearly three weeks after the killing in Yucca Valley.