Skolskjutning i USA, Florida, minst 17 döda (2018-02-14)

The 19-year-old who is accused of killing 17 people and injuring dozens more when he opened fire on a South Florida high school Wednesday afternoon told investigators that he heard voices in his head, giving him instructions on what to do to conduct the attack, law enforcement sources told ABC News.

The voices were described as "demons" by law enforcement sources.

The officer who detained him, Michael Leonard of the Coconut Creek Police Department, said in an earlier press conference Thursday that he spotted someone matching the description of the shooting suspect in a residential neighborhood in Coral Springs, near the school.

Cruz looked like a "typical high school kid," Leonard said. After he saw him, he "immediately" pulled over his vehicle, and Cruz complied with his orders, he said. Cruz was then positively identified by homicide detectives from the Broward Sheriff's Office and taken into custody.

"If you are an elected official and you want to keep things the way they are and not do things differently, if you wanna keep the gun laws as they are now -- you will not get re-elected in Broward County."

The gunman who killed 17 at a Florida high school Wednesday afternoon attempted to fire at fleeing students from the building's third-floor windows, but the high-impact windows didn't shatter, a state senator said.

Florida State Sen. Bill Galvano said authorities told him it would have been easy for the shooter, identified as 19-year-old Nikolas Cruz, to open the windows.

"Thank God he didn't," Galvano said. He said he was given a tour of the school and was shown bullet holes on the glass.

Nikolas 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.

The boys were left in the care of a family friend after their mother died, family member Barbara Kumbatovich, of Long Island, said.

Unhappy there, Nikolas Cruz asked to move in with a friend’s family in northwest Broward. The 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.

Mr Cruz reportedly commented on a YouTube post last year that he would be a "professional school shooter".

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After seeing a comment on a YouTube post last year by Mr Cruz, user Ben Bennight contacted the FBI and spoke to representatives for about 20 minutes.

Mr Bennight said the FBI contacted him again following the school shooting in Parkland.

The FBI confirmed on Thursday that they were made aware of the comment, adding that they had conducted "checks" but were unable to identify the person behind it.