No one in Klausutis’s family would talk about Trump’s tweets for this article, fearing retaliation by online trolls of the type who went after parents of the Sandy Hook massacre victims. Their grief has been disrupted by conspiracy theories before — not only over the past few years from the White House, but from some liberals who at the time of her death sought to portray a then-conservative Republican congressman as a potential villain.

“There’s a lot we would love to say, but we can’t,” said Colin Kelly, who was Klausutis’s brother-in-law…

Trump’s tweets offer a reminder of the remarkable nature of the Trump era — that a sitting president can traffic in incendiary and false allegations while the political world around him remains largely silent, accustomed to Trump’s modern-day definition of presidential behavior. As with many such eruptions from the White House, there will probably be little if any consequence beyond, in this case, the collateral suffering of a private family in Florida. A White House spokesman declined to comment.