The biological mom of suspected Florida State University shooter Phoenix Ikner claimed she has not seen her estranged son in several years after she abducted him to Europe a decade ago — but had concerns over his well-being.

Anne-Mari Eriksen said she had concerns for her 20-year-old son before he was accused of killing Aramark employees Tiru Chabba, 45, and Robert Morales, and injuring six others on the campus located in Tallahassee.

A Pennsylvania man remained jailed on Sunday after being accused by authorities of planning a mass school shooting for later this month that would have coincided with the anniversary of the Columbine High School massacre.

Police allege Braeden Phillips, 20, had planned to commit a mass shooting at State College High School in Central Pennsylvania on April 21, one day after the 26th anniversary of the deadly Columbine High School shooting, according to a criminal complaint.

The hate-filled teenage incel who gunned down a fellow pupil at his Nashville school this week appears to have been in contact with fellow Christian school shooter Natalie “Samantha” Rupnow, according to a report.

The online accounts of Solomon Henderson, the 17-year-old who shot himself dead after murdering a 16-year-old girl Wednesday, showed ties with Rupnow, the 15-year-old who also killed herself after fatally shooting two at her school in Madison, Wisconsin, law enforcement sources told ABC News.

A 17-year-old shooter killed himself after fatally wounding a female student in a shooting at a Nashville high school on Wednesday, police said.

MNPD spokesperson Don Aaron said during a news conference that two others who were injured in the shooting at Antioch High School are being treated at a hospital.

THIS IS A BREAKING NEWS UPDATE. AP’s earlier story follows below.

Authorities say one person is dead and two others have been wounded by gunfire at a Nashville high school.

There have been at least 83 school shootings in the United States so far this year, as of December 16. Twenty-seven were on college campuses, and 56 were on K-12 school grounds. The incidents left 38 people dead and at least 116 other victims injured, according to CNN’s analysis of events reported by the Gun Violence Archive, Education Week and Everytown for Gun Safety.

The number of children killed by guns in America has risen by 85 per cent in the last decade as school shootings rose year-on-year, data shows.

The shooter who killed at least two people on Monday at a Christian school in Madison, Wis., was identified as Natalie Rupnow, a 15-year-old student who later died from what appeared to be a self-inflicted gunshot wound, the police said.

The shooter, who went by “Samantha,” opened fire in a study hall classroom with students from several grades at Abundant Life Christian School, said Shon F. Barnes, the Madison police chief.

Officers arrived after a second-grade student placed a 911 call to report the shooting.

Police in Madison, Wis., are investigating how the 15-year-old school shooter obtained a handgun.

Police Chief Shon Barnes, in an interview Tuesday morning with CNN’s John Berman, said partners at the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) are expediting a trace form “to determine the origin of that weapon, who purchased it, and how it got from a manufacturer all the way into the hands of a 15-year-old girl.”

At least two people were killed and six others were injured in a Monday morning shooting at a Christian school in Wisconsin by a teenage girl who opened fire on campus, police said.

Madison Police Chief Shon Barnes said one student and one teacher were shot and killed at Abundant Life Christian School, and also said the gun-wielding teenage student was found dead after she appeared to take her own life.

Chief Barnes identified the shooter Monday evening as 15-year-old Natalie Rupnow, a student at the school who also used the name Samantha/Sam online.