Including the shooter himself: (NY Times)
Mr. Cruz, 19, himself called the authorities just after Thanksgiving, describing how he had been in a fight and was struggling with the death of his mother. “The thing is I lost my mother a couple of weeks ago, so like I am dealing with a bunch of things right now,” he said in a childlike voice, sounding agitated and out of breath.
The authorities have acknowledged mishandling numerous warning signs that Mr. Cruz was deeply troubled. There were tips to the F.B.I. about disturbing social media posts. There were visits by social services to his home. There were dozens of calls to 911 and the local authorities, some mentioning fears that he was capable of violence.
Sorry for the continuing attention to Florida, but this is on my heart. This is a failure of people, not of laws.