“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.
The mayor of Parkland, Christine Hunschofsky, reacted to Trump’s tweet on Thursday when it was read to her by CNN’s Alisyn Camerota on “New Day.”
“If a solution was simple for these things, we would have found one already,” she said.
Hunschofsky added that she hopes a shooting like the one in her town “never happens anywhere again” and going forward vowed to be more vigilant in talking to her community about posts on social media or disturbing behavior.
The suspect, Nikolas Cruz, a 19-year-old former student, is in custody. Cruz was previously expelled from the school for unspecified disciplinary reasons, officials said.
Postings under the name Nikolas Cruz included threatening comments under videos on YouTube and other sites, including “I whana shoot people with my AR-15” (sic), “I wanna die Fighting killing s**t ton of people” and “I am going to kill law enforcement one day they go after the good people.”
On his Instagram page, Cruz posted a photo of a shotgun, and in another photo, he is shown brandishing a pistol that appears to be a type of BB gun. In other pictures he is covering his face with a kerchief and brandishing long knives.
Police say Cruz was armed with multiple magazines and at least one AR-15 style rifle.
The suspected shooter bought the firearm in the past year and had passed the background check to make the purchase, according to a US official briefed on the investigation.
This story has been updated.
CNN’s Elizabeth Landers, Madison Park, Ray Sanchez, Kevin Liptak, Ashley Killough and Ted Barrett contributed to this report.