There’s some pretty solid geolocation out as of a while ago now and it seems to have held up. I’m gobsmacked that the shooter was able to get up on that roof, that close. ~125m shot. Trump is very, very lucky to be alive. And, taking what we can presently see at face value, this was a pretty colossal security failure.
I saw what purports to be a photo of the shooter’s face (or what’s left of it) being held up by law enforcement to be able to see it. Looks to me like a leaked photo taken by police. At a cursory look it appears legit enough. USSS got him good.