The Joker. Photo: Ron Jenkins/Getty Images

Shortly after Omar Mateen murdered 49 people in the Pulse nightclub, the Republican nominee accepted congratulations.

Appreciate the congrats for being right on radical Islamic terrorism, I don't want congrats, I want toughness & vigilance. We must be smart! — Donald J. Trump (@realDonaldTrump) June 12, 2016

On Friday, Donald Trump set himself up for some more of those sweet post-mass-murder pats on the back.

People very unhappy with Crooked Hillary and Obama on JOBS and SAFETY! Biggest trade deficit in many years! More attacks will follow Orlando — Donald J. Trump (@realDonaldTrump) June 17, 2016

As Politico notes, Trump offered a similar guarantee on Wednesday in Atlanta, telling supporters, “I hate to say it but it’s going to happen again and again and again … Because we’re not doing what we’re supposed to be doing.”

Another thing Trump hates to say, but says quite often nonetheless: Violent tragedies benefit him politically. “Whenever there’s a tragedy, everything goes up, my numbers go way up,” Trump said shortly after last year’s attack in San Bernardino.

What’s bad for America is good for Trump. Which makes one wonder: Is the GOP nominee just predicting future attacks, or does he “have something else in mind”?