He was pocket carrying. I wonder how many rounds the pistol held. This is one more thing to consider when you are allocating rounds per target.

Obviously, he had enough for a second shot as he took it as the guy was running away.

I didn't see the second bad guy shooting, so I'm not clear on why he became a target for the off-duty cop. I'm not questioning whether it was a good shoot or bad shoot, just curious as to what else was going on that isn't obvious in the video.