Abundant Life Christian School shooting latest: Motive under investigation

Officials are trying to figure out why a 15-year-old girl allegedly opened fire at her school, Abundant Life Christian School, on Monday, killing a fellow student and teacher in a heinous crime that shocked the Madison, Wis., community.

The suspect, Natalie Rupnow, who went by Samantha, died of a self-inflicted gunshot wound, police said. The officers did not fire their weapons.

Two students were hospitalized in critical condition with life-threatening injuries, police said, while three more students and a teacher suffered non-life-threatening injuries.

Police have not yet suggested a motive for the attack or said whether they believe the victims were specifically targeted.

The suspect’s parents are cooperating with the investigation, Madison Police Chief Shon Barnes told ABC News on Tuesday.

“They were cooperative. Despite this tragedy, they still lost a child. They still lost a member of their family,” Barnes said. “It’s certain that they probably have more questions than anyone because they knew her. They lived with her, and so we wanted to get an account from them about what kind of child she was.”

Her father is being questioned by investigators, Barnes said. He said he did not know if the mother had been questioned and noted that she has been out of town.

Students in kindergarten through 12th grade attend the Christian school. Police said the shooting was in a classroom below a study hall “full of students from multiple grades.”

“I was in the hallway and I was changing from my shoes to my boots to go to lunch because I have the day off, but then I heard the shooting and the screams,” a second-grade girl told Chicago ABC station WLS.

A second-grader also called 911, Barnes said.

“Let it sit for a minute,” Barnes added. “A second grade student called 911 at 10:57 a.m. to report a shooting at the school.”

In the wake of Monday’s shooting, President Joe Biden and Vice President Kamala Harris are calling on elected officials to fight gun violence.

Biden, in a statement, called the shooting “shocking and unconscionable,” and he cited his administration’s efforts to combat the gun violence epidemic in the United States, including the implementation of the White House Office of Gun Violence Prevention.

Biden asked Congress to pass “commonsense” gun safety laws, including universal background checks, a national red flag law and a ban on both assault weapons and high-capacity magazines.

“It is unacceptable that we are unable to protect our children from this scourge of gun violence,” Biden said, adding, “We cannot continue to accept it as business as usual.”

“It’s another school shooting, another community being torn apart and torn apart by gun violence,” Vice President Kamala Harris said in remarks Tuesday. “And of course, our nation mourns those who were killed and we pray for recovery for those who were injured and for the entire community.”

Harris, who played a role in the Biden administration’s efforts to combat gun violence, stressed, “We as a nation must renew our commitment to ending the horror of gun violence, both mass shootings and everyday gun violence that affects so many communities in our nation.”

“We need to end it and we need to be committed to having the courage to know that solutions are at hand, but we need elected leaders to have the courage to step up and do the right thing,” she said.

ABC News’ Briana Stewart and Molly Nagle contributed to this report.