That photo was not taken by the Secret Service It was taken by local cops.

I believe it was the counter snipers who were inside the America Glass Research building. These would have been law enforcement from Beaver County. Local News reported this

Part of the issue people are having trouble with understanding this incident is he was around the event for a while, BUT he was not on the roof and he was not armed the whole time. He was moving around without his gun. He was not on the roof for 30 minutes like some people have claimed.

He was outside the security perimeter. So he didn't go through the metal detectors. The first time people noticed him, seemed to him acting weird by the metal detectors. He moved around. He was probably figuring out what to do. I don't think he had his gun with him until shortly before shooting and he only got to the roof a bit before the shooting. The guy who said he saw him crawl on to the roof, said Trump's speech had already begun when this guy got on the roof.

This is the first time someone sees him with a gun that we have heard about.

So far nobody has seen him with a ladder.

So I think he stashed his stuff nearby until he figured out what do. Also it would make sense to wait until Trump was on Stage

I think of two stages of him At first he was a suspicious guy. Then later he was an active armed threat.

A local LEO did try to get on the roof. As he was holding onto the ledge, Crooks pointed his gun at him and the cop let go and fell 8 feet