Apparently the NY Times tipped the shooter off back in April and said these congressman practice at this baseball field in plain cloths with capital police waiting in a black suv in the parking lot. Obviously this guy was new to shooting guns because AR-15s are deadly accurate at 100 yards or less.
http://www.thegatewaypundit.com/2017/06/ny-times-tipped-off-shooter-gop-practice-field/
Yes, but why would the cops in a black suv let him shoot for ten minutes, I take it they are well trained, I don't think they would put just any cop to guard congressmen, this shouldn't have lasted more than 2 minutes.
You mean these congressmen have been practising for this game since April?