SAN BERNARDINO, Calif. >> A husband opened fire on his wife today in a San Bernardino elementary school classroom, killing her and a student in a murder-suicide that spread panic across a city still recovering emotionally from a terrorist attack at a community center just 15 months ago.

The shooter also died, and a second student was critically wounded at North Park School.

“The children we do not believe were targeted,” police Capt. Ron Maass told reporters.

The gunman was identified as 53-year-old Cedric Anderson, of Riverside, who shot his wife, Elaine Smith, also 53. She was a teacher in the special-needs classroom for students in first through fourth grades.

Suspect in shooting identified as Cedric Anderson, age 53, resident of Riverside, CA. pic.twitter.com/H9YYQZvZud

— San Bernardino PD (@SanBernardinoPD) April 10, 2017

Anderson said nothing as he began firing a large-caliber revolver, according to police. Both of the children who were hit were standing behind Smith. An 8-year-old later died. The other student was hospitalized in stable condition.

The gunman had a history of weapons, domestic violence and possible drug charges that predated the marriage, which lasted only a few months, authorities said.

Victim in school shooting identified as Karen Smith, age 53, estranged wife of suspect. pic.twitter.com/IaC7RCtVhl

— San Bernardino PD (@SanBernardinoPD) April 10, 2017

The boy who died was identified as Jonathan Martinez. Authorities did not name the other boy who was wounded.

The 600 other students at the school were bused to safety at California State University’s San Bernardino campus, several miles away. Television news footage showed students, escorted by police officers, walking off campus hand-in-hand.

As word of the shooting spread, panicked parents raced to the school, some in tears, some praying as they anxiously sought information about their children. They were told to go to a nearby high school where they would be reunited.

Four hours later, the children began to arrive at the high school, getting hugs from emotional parents. As the students got off the buses, many of them carrying glow sticks they had been given to pass the time with, police officers applauded and high-fived them.

When the buses first pulled away, some parents ran alongside, waving and trying to recognize their children inside. Many said their children were too young to have cellphones. Others said the phones rang unanswered.

Among those waiting anxiously at the high school for her 9-year-old granddaughter’s return was Alberta Terrell, who said she cried with relief when she was told that a family friend saw the girl getting safely onto a bus.

“I was really elated. But I won’t be truly happy until I see her and can give her a big hug,” Terrell said as she sat in the bleachers near Cajon High School’s baseball diamond.

“It’s frustrating for us as parents but also understandable,” Holly Penalber said of the long wait, which most parents seemed resigned to.

Penalber’s 9-year-old son and 7-year-old daughter attend the school. She called today’s shootings “every parent’s worst nightmare.”

San Bernardino, a city of 216,000 people about 60 miles east of Los Angeles, was the site of a December 2015 terror attack that killed 14 people and wounded 22 others at a meeting of San Bernardino County employees. Husband-and-wife shooters Syed Rizwan Farook and Tashfeen Malik were later killed in a gunbattle with authorities.

Today’s shooting was the latest tragedy for a city that has struggled in recent years with more than its share of them. Once a major rail hub and citrus producer, San Bernardino filed for bankruptcy in 2012 after struggling to pay its employees despite steep cuts to the budget.

An outlying suburb of Los Angeles, it was hit hard when the Great Recession sent housing prices tumbling. As the city struggled with economic problems that forced layoffs of police and other government workers, violent crimes, particularly homicide, began to rise.

In the past year, however, the city seemed to be making a recovery. Police Chief Jarrod Burguan, who won national praise for the way his department responded to the 2015 shootings, announced last year he was hiring additional officers.

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Associated Press writers Michael Balsamo, Brian Melley and John Rogers contributed to this story.