Less is always LESS, the impact margin only multiply with the error of shooting ability. So with a gun with marginal mechanical accuracy, and a shooter with marginal accuracy results in even wider spread.

The officer did a good job, clearly justified, and he was a trained SWAT marksman. But what if that shot had been taken by a not so well trained officer? A inch could make the difference between a success, or tragedy.

BTW I did not bring Glock up, another member did, and we have been off topic since. As far as I am concerned the incident was justified, and no matter what he was carrying that is ALL that matters.