"...dangerous 'barrel' roll..."
The low-level barrel roll is one of the easiest manoeuvres there is......
.......for killing people. Usually by failing to pitch sufficiently during the first part, then burying the nose during the second part, without enough height to complete the manoeuvre.
"...later lying to officers when questioned."
would seem to be the final straw though. One thing to own up and take an ar$e-kicking, quite another to lie. So I guess he'll soon be cooking meatballs at the local Ikea, if he's lucky.