It was a decision that only he could have made. Seeing it on a video anyone can second guess what they think should have happened. He had a chance to look at the situation first hand. It looked like he saw his opening and acted decisively. He knew he had the shot, he took it and didn't hesitate. Hesitation will get you killed. I think he did a great job!
USAF Retired, CATM, SC CWP, NH NR CWP, NRA Benefactor
To preserve liberty, it is essential that the whole body of people always possess arms, and be taught alike, especially when young, how to use them... -- Richard Henry Lee, 1787