Trump sniper-Police were warned & did nothing

Another eye witness says that he told law officers there was a man on the roof climbing between multiple rooftops and they did absolutely nothing to stop him until it was too late! WTF!
We need an investigation into the Trump assassination attempt immediately!

"I saw a guy on top of one of the buildings, go in between one building to the next, and went and told the officer that he was up there. And when I went back to my spot I heard that people could still see the person from where they were standing so I checked that out, and I went and went back to tell the officer that if he came over there he could see them. And when I turned my back it's when the shots when the shots started and it was it took me a second or two to figure out exactly what it was. And then it was just getting out of there…and helping some other person out with her child and we got out And that was that was the end of that And I went and left and that was all....So this man was able to basically…climb to the next building…and you told law enforcement, Hey there's a guy over there. Correct I don't know how he got up there I don't know any of that but I definitely saw him up there And, sir, that was all."