On June 12, 2016, Mateen spent just over three hours in PULSE from the time he began slaughtering innocent people at roughly 2:00 a.m. until he was killed by a SWAT team at roughly 5:00 a.m. During that time, he repeatedly spoke to his captives about his motive, did the same with the police with whom he was negotiating, and discussed his cause with local media which he had called from inside the club. Mateen was remarkably consistent in what he said about his motivation. Over and over, he emphasized that his attack at PULSE was in retaliation for U.S. bombing campaigns in Iraq, Syria and Afghanistan. In his first call with 911 while inside PULSE, this is what he said about why he was killing people:

Because you have to tell America to stop bombing Syria and Iraq. They are killing a lot of innocent people. What am I to do here when my people are getting killed over there. … You need to stop the U.S. airstrikes. They need to stop the U.S. airstrikes, OK? . … This went down, a lot of innocent women and children are getting killed in Syria and Iraq and Afghanistan, OK? … The airstrikes need to stop and stop collaborating with Russia. OK?

In the hours he spent surrounded by the gay people he was murdering, he never once uttered a homophobic syllable, instead always emphasizing his geo-political motive. Not a single survivor reported him saying anything derogatory about LGBTs or even anything that suggested he knew he was in a gay club. All said he spoke extensively about his vengeance on behalf of ISIS against U.S. bombing of innocent Muslims.

Mateen's postings on Facebook leading up to his attack all reflected the same motive. They were filled with rage about and vows of retaliation against U.S. bombing. Not a single post contained any references to LGBTs let alone anger or violence toward them. “You kill innocent women and children by doing U.S. airstrikes,” Mateen wrote on Facebook in one of his last posts before attacking PULSE, adding: “Now taste the Islamic state vengeance.”

: People still surround the Pulse nightclub which is still an active crime scene on June 18, 2016 in Orlando, Florida. (Photo by Spencer Platt/Getty Images)
It was of course nonetheless possible that he secretly harbored hatred for LGBTs and hid his real motive, but that never made sense: the whole point of terrorism is to publicize, not conceal, the grievances driving the violence. And again, good journalism requires evidence before ratifying claims. There never was any to support the story that Mateen's attack was driven by anti-LGBT hatred, and all the available evidence early on negated that suspicion and pointed to a radically different motive. But the media frenzy ended up, by design or otherwise, obscuring Mateen's anger over Obama's bombing campaigns as his motive in favor of promoting this as an anti-LGBT hate crime.

As the FBI investigation into Mateen proceeded, all the early media gossip — that Mateen was a closeted gay man who had searched for male sexual partners and had even previously visited PULSE — were debunked. The month after the attack, The Washington Post reported that “The FBI has found no evidence so far that Omar Mateen chose the popular establishment because of its gay clientele,” and quoted a federal investigator as saying: “While there can be no denying the significant impact on the gay community, the investigation hasn’t revealed that he targeted PULSE because it was a gay club.” The New York Times quickly noted that no evidence could be found to support the speculation that Mateen was gay:

F.B.I. investigators, who have conducted more than 500 interviews in the case, are continuing to contact men who claim to have had sexual relations with Mr. Mateen or think they saw him at gay bars. But so far, they have not found any independent corroboration — through his web searches, emails or other electronic data — to establish that he was, in fact, gay, officials said.

The following year, the local paper that most extensively covered the PULSE massacre, The Orlando Sentinel, acknowledge that “there’s still no evidence that the Pulse killer intended to target gay people.”

As the investigation proceeded, this anti-LGBT hate crime narrative became more and more unlikely. But the question of Mateen's motives was settled once and for all — or at least it should have been — during the unsuccessful attempt by the Justice Department to prosecute Mateen's wife, Noor Salman, on numerous felony charges alleging her complicity in her husband's attack. That trial — quite justifiably — ended in a full acquittal for Salman, but evidence emerged during it that conclusively disproved the widely held view that Mateen chose PULSE because he wanted to kill gay people.