PARKLAND, Fla. (AP) — An orphaned 19-year-old with a troubled past and his own AR-15 rifle was charged with 17 counts of premeditated murder Thursday morning following the deadliest school shooting in the U.S. in five years.
Law enforcement officials told The Associated Press that Nikolas Cruz legally purchased the assault weapon used in the attack.
As reactions poured in Thursday, President Donald Trump focused on the young man's mental health.
"So many signs that the Florida shooter was mentally disturbed, even expelled from school for bad and erratic behavior. Neighbors and classmates knew he was a big problem. Must always report such instances to authorities, again and again!" Trump tweeted.
Fourteen wounded survivors were hospitalized as bodies were recovered from inside and around Marjory Stoneman Douglas High School.
Cruz, still wearing a hospital gown after being treated for labored breathing, and weighing in at 5-foot-7 and 131 pounds, was ordered held without bond and booked into jail.
His former classmates thought they were having another drill when a fire alarm sounded, requiring them to leave their classrooms Wednesday.
That's when police say Cruz, equipped with a gas mask, smoke grenades and magazines of ammunition, opened fire with a semi-automatic weapon, killing 17 people and sending hundreds of students fleeing into the streets.
It was the nation's deadliest school shooting since a gunman attacked an elementary school in Newtown, Connecticut, more than five years ago. The overall death toll differs by how such shootings are defined, but Everytown For Gun Safety has tallied 290 school shootings in America since 2013, and this attack makes 18 so far this year.
Trump also issued a proclamation saying, in part, "Our Nation grieves with those who have lost loved ones," and planned to address the nation about the shooting. Among the many other responses, the New York Stock Exchange held a minute of silence after its opening bell.
Cruz legally purchased the AR-15 used in the attack about a year ago, law enforcement officials told The Associated Press. The officials, not authorized to discuss this publicly, spoke on condition of anonymity. Federal law allows people 18 and older to legally purchase long guns, including this kind of assault weapon.
Authorities offered no immediate details about a possible motive, except to say that Cruz had been kicked out of the high school, which has about 3,000 students. Students who knew him described a volatile teenager whose strange behavior had caused others to end friendships with him.
Cruz's mother Lynda Cruz died of pneumonia on Nov. 1 neighbors, friends and family members said, according to the Sun Sentinel . Cruz and her husband, who died of a heart attack several years ago, adopted Nikolas and his biological brother, Zachary, after the couple moved from Long Island in New York to Broward County.
The boys were left in the care of a family friend after their mother died, said family member Barbara Kumbatovich, of Long Island.
Unhappy there, Nikolas Cruz asked to move in with a friend's family in northwest Broward. That family agreed and Cruz moved in around Thanksgiving. According to the family's lawyer, who did not identify them, they knew that Cruz owned the AR-15 but made him keep it locked up in a cabinet. He did have the key, however.
Attorney Jim Lewis told the AP that the family is cooperating with authorities, and had no idea he was planning the shooting.
He seemed like "just a mildly troubled kid who'd lost his mom" during the three months they lived together; respectful and quiet, but also said because his mother had died, Lewis said.
They had "no indication that anything severe like this was wrong," Lewis said. "He totally kept this from everybody."