"...bad judgement..."
Tripping, stumble, misstep, potato potahtoe. You characterize it as a "lie" because you want to. It might be a lie, but it might also be an exaggeration or misspoke. According to what someone else said, it looked like he accidentally discharged the gun. Perhaps he did "trip" over something, or misstepped with his foot.
How about a little objectivity for a change? No one got shot, therefore no one was shot at.