That was likely a suppressed AR15. Lot of rounds fired, and one dead. A 22 long rifle is not effective at 200 yards. It can still kill you, but only a very experienced shooter can get the range and wind right on a 22 long rifle. There is a lot more drop at that range than most folks know, and even a slight breeze plays hell with judging windage.
I heard the secret service agents say shooter down on the livestream
I did too.
That was likely a suppressed AR15. Lot of rounds fired, and one dead. A 22 long rifle is not effective at 200 yards. It can still kill you, but only a very experienced shooter can get the range and wind right on a 22 long rifle. There is a lot more drop at that range than most folks know, and even a slight breeze plays hell with judging windage.