Back in December a Shreveport Louisiana police officer was working extra-duty at an apartment complex, and while questioning a subject he found that the man had a concealed handgun. They fought briefly over the gun and the officer shot the man in the process of defending himself. Dashboard camera and audio available below, though it's mostly audio.
My point in posting this is the reminder of the anxiety, adrenaline rush, hyperventilation, etc that you may experience after you've defended yourself in a life or death situation. I think it's evident in the officers voice, and I certainly don't see that as a weakness, he's human just like us. Any of us could face a similar situation, no doubt it's stressful.
Authorities release video of fatal shooting by Shreveport officer | Shreveporttimes | shreveporttimes.com