Have you ever stopped quickly and had something on the seat beside you clunk onto the floor? It's almost a reflex to pick it back up and put it on the seat, especially if it's tangled up in your feet near the pedals.
I could easily imagine something like this happening and over-riding his attention to the sudden need to keep his hands showing in the hope the police weren't going to mistakenly shoot him.
Perhaps. But if cops with “rifles” are threatening me, I am more inclined to make my hands visible than to put them in an unknown bag.
But that is me. They said he was an Army Reservist, they didn’t say he was smart or that he handled stress well.
My point is that we see this constantly even (or especially) here on FR: Cops shoot a person/dog/(insert something here) and regardless of what actually happened or how it is reported, there are people who will automatically castigate the police and people who will support the cops, no matter what.
The story from the UK has a particular agenda, we know that, we have seen it before. A stopped clock can be right twice a day, and zebras do end up on horse farms, but most of the time, we can only go on what we know.
It could be a dirty cop. It could be a bunch of cops willing to draw weapons in public because someone is sleeping with another cop’s woman, it could be any number of things. We don’t know any of that. None of it. But we have lots and lots of theories.