Mark Henson, 63, now faces a charge of felony criminal mischief for the Oct. 12 blaze.
Security video from the incident shows an unknown suspect setting an outdoor wall displaying banners, photos and flowers ablaze.
"There’s nothing worse than having to wait and wonder what happened," the president said.
Five years after the deadly mass shooting, the legislation will create a national memorial at the gay nightclub in Orlando where 49 people were killed.
The Latin pop superstar will lend his support and promote tolerance via social media posts, video messages and narrating exhibitions.
Organizers opted for an online event to mark four years since the deadly shooting at the nightclub in Orlando, Florida.
The graphic video was branded “horrible,” “f**ked up” and “triggering” for survivors like her. A Pulse nightclub survivor has also called it "insensitive."
The South Bend, Indiana, mayor paid tribute to the 49 people killed in the Orlando, Florida, massacre, calling for gun control and anti-hate crime legislation.
Lawmakers introduced a bill to designate the location a federal landmark days before the third anniversary of the mass shooting at the gay nightclub.
The comedian acknowledged the "beautiful lives cut short by senseless evil" before meeting with the mother of one of the 49 victims.