The teenager accused of using a semi-automatic rifle to kill 17 people at a Florida high school confessed to carrying out one of the nation's deadliest school shootings and concealing extra ammunition in his backpack, according to a sheriff's department report released Thursday.
The report from the Broward County Sheriff's Office said Nikolas Cruz told investigators that he shot students in the hallways and on the grounds of Marjory Stoneman Douglas High School in Parkland, Fla.
Cruz told officers he brought more loaded magazines to the school and kept them hidden in the backpack until he got on campus.
As students began to flee, he said, he discarded his AR-15 rifle and a vest he was wearing so he could blend in with the crowd. Police recovered the rifle and the vest.
According to a time released late Thursday by authorities, the accused was only in the building for six minutes.
A day after the attack, a fuller portrait emerged of the suspect, a loner who had worked at a dollar store, joined the school's ROTC program and posted photos of weapons on Instagram. At least one student said classmates joked that Cruz would "be the one to shoot up the school."
Cruz, a 19-year-old orphan whose mother died last year, was charged with murder Thursday in the attack in this sleepy community on the edge of the Everglades. It was the nation's deadliest school attack since a gunman assaulted an elementary school in Newtown, Conn, more than five years ago.
'There was blood everywhere'
Meanwhile, students struggled to describe the violence that ripped through their classrooms on an ordinary day just before classes were to be dismissed.
Catarina Linden, a 16-year-old sophomore, said she was in an advanced math class Wednesday when the gunfire began.
"He shot the girl next to me," she said, adding that when she finally was able to leave the classroom, the air was foggy with gun smoke. "I stepped on so many shell casings. There were bodies on the ground, and there was blood everywhere."
Among the dead: a football coach who also worked as a security guard, a senior who planned to attend Lynn University, an athletic director who was active in his Roman Catholic church.
Some bodies remained inside the high school Thursday as authorities analyzed the crime scene. Thirteen wounded survivors were still hospitalized, including two in critical condition.
'Broken human being'
Authorities have not described any specific motive, except to say that Cruz had been kicked out of the high school, which has about 3,000 students and serves an affluent suburb where the median home price is nearly $600,000 US. Students who knew him described a volatile teenager whose strange behaviour had caused others to end friendships with him.
Cruz was ordered held without bond at a brief court hearing. He wore an orange jumpsuit with his hands cuffed at his waist. His attorney did not contest the order and had her arm around Cruz during the short appearance.
Afterward, she called him a "broken human being" and added that she "had to have the exact same conversation that every parent in Broward County had to have with their children this morning."
Wednesday's shooting was the 17th incident of gunfire at an American school this year, according to Everytown for Gun Safety. Of the 17 incidents, one involved a suicide, two involved active shooters who killed students, two involved people killed in arguments and three involved people who were shot but survived. Nine involved no injuries at all.
Warning signs potentially overlooked
As the criminal case began to take shape, U.S. President Donald Trump, in an address to the nation, promised to "tackle the difficult issue of mental health," but avoided any mention of guns. Trump, who owns a private club in Palm Beach, about 64 kilometres from Parkland, said he planned to visit the grieving community.
He did not answer shouted questions about guns as he left the room. At the Capitol, the usual divisions over gun laws were evident.
Trump, who did not speak publicly immediately after the shooting, weighed in on Twitter early Thursday, calling the suspect "mentally disturbed" and stressing that it was important to "report such instances to authorities, again and again!"
In the case of Cruz, at least one person did report him.
FBI agent Rob Lasky said the FBI investigated a 2017 YouTube comment that said "I'm going to be a professional school shooter." But the agency could not identify the person who made the comment, which was from an account using the name Nikolas Cruz. It was left on a YouTube video of a vlogger and bail bondsman from Louisiana named Ben Bennight.
In a Buzzfeed article, Bennight said he called the FBI, and agents came out to talk with him. They called him again Wednesday.
Officials were also investigating whether authorities missed other warning signs about Cruz' potentially violent nature.
He had been expelled from the school for "disciplinary reasons," said Broward County Sheriff Scott Israel, who said he did not know the specifics.
One student said Cruz had been abusive to his ex-girlfriend and that his expulsion was over a fight with her new boyfriend.
Math teacher Jim Gard told the Miami Herald that Cruz may have been identified as a potential threat before Wednesday's attack. Gard believes the school had sent out an email warning teachers that Cruz should not be allowed on campus with a backpack.
'He was quiet, nice'
There was confusion throughout the day over reports that Cruz had connections to a white nationalist militia called the Republic of Florida. One of the group's members, Jordan Jereb, told media that Cruz had once participated in training exercises in Tallahassee, and that he'd had a brief interaction with Cruz several years ago.
After Jereb's claims started to circulate online, however, both the Leon County Sheriff's office in Tallahassee and Southern Poverty Law Center said they could not confirm any links between Cruz and the militia.
Jereb appears to have backed away from his remarks. Someone posting under his name on Gab, a social media site popular with far-right extremists, said that he was confused because there are several militia members with some variation of the name Nicholas, saying it was a "legit misunderstanding" and that the "lying" media had twisted his words.
Student Jonathan Guimaraes, 17, told the Miami Herald that he had been in JROTC with Cruz.
"He was quiet, nice," Guimaraes said. "That's how he was able to blend in. He was wearing his JROTC uniform."
When he was arrested, Cruz had on a maroon polo shirt bearing an ROTC insignia and the school's eagle mascot.
Cruz's mother, Lynda Cruz, died of pneumonia Nov. 1, and his father died previously, according to the arrest affidavit.
Two federal law enforcement officials said the Smith & Wesson M&P15 .223 was purchased legally at Sunrise Tactical Gear in Florida.
Cruz passed a background check and legally purchased the assault weapon from a licensed dealer in February 2017, a law enforcement official familiar with the investigation but not authorized to discuss it publicly told The Associated Press on condition of anonymity.