3 dead, 1 student injured in shooting at San Bernardino elementary school

Two adults -- a female teacher and a male shooter -- were killed. The male shooter died of a self-inflicted gunshot wound.

Two wounded students were flown to a hospital where an 8-year-old, identified by The Associated Press as Jonathan Martinez, later died. The other student, who is 9, was listed in critical condition but has now been stabilized at the hospital.

Authorities said the shooter had an existing relationship with a North Park teacher who was a victim.

"We believe the teacher knew who the shooter was," San Bernardino City Unified School District spokeswoman Maria Garcia told  KNBC.

The Associated Press reported that Cedric Anderson, 53, had been estranged from his wife, 53-year-old special education teacher Karen Elaine Smith, for about a month. The two married months earlier, according to police.

The San Bernardino Police released photos of Anderson, who they identified as a suspect, and Smith, one of the victims.

The classroom included 15 students ranging from first to fourth grade. Two adult aides and Smith were in the classroom at the time of the incident, in which Anderson opened fire without saying anything.

The children who were shot were not related to the adults and are not believed to have been intentionally targeted, authorities said.

One child has been reunited with family, KTLA reported.

Other children at North Park were taken to nearby Cajon High School, where parents were told that they could pick them up after showing identification.

Officials said parents could expect hours-long delays in reuniting with their children as identifications are verified and students are interviewed as witnesses.

“Our hearts are broken,” said Dale Marsden, the superintendent of the San Bernardino City Unified School District.

North Park’s campus is safe, authorities said, but Marsden said the school will be closed for at least two days while authorities investigate.

North Park Elementary has about 600 students in kindergarten through sixth grades, according to The AP. The school does not have security officers on campus on a daily basis. The students were bused to California State University's San Bernardino campus after some were escorted out of the school by police.

According to San Bernardino police Capt. Ron Maass, Anderson signed in at North Park’s front desk before going to the classroom, where he opened fire.

“There was no indication the gun was visible upon his arrival at the school,” Maass said.

Marsden said general policy for adult visitors to classrooms involves showing identification and stating purpose of the visit.

According to authorities, Anderson said he was going to the classroom to drop something off for Smith.

San Bernardino Mayor R. Carey Davis said President Donald Trump called to express concern and support.

In December 2015, husband and wife Syed Rizwan Farook and Tashfeen Malik shot and killed 14 people and wounded 22 others after ambushing a training event at the Inland Regional Center in San Bernardino.

“Tragedy has again befallen our city,” Police Lt. Mike Madden said Monday, The AP reported.

The Associated Press contributed to this report.