Nope. Emerging from cover could have gotten that officer shot for all he knew. He was doing his job, protecting members of the Senate and House from an out of control armed mob. When they breached the barricade, they got shot. That's exactly the correct response. I guess you think the officer that was beaten to death with a fire extinguisher should have politely placed the protestors under arrest, right? The guy that was beaten on the steps should have said....'would you mind if I handcuffed you'? Should the cop trapped in the door said 'pretty please, will you leave?'
Fuck that. The shooting was justified. Period, end of story. You are aligned with traitors, therefore you are a traitor.