Contrary to the report you quote, NONE of the dead were from the Bandidos.
Eight of the dead were Cossacks and one was a 65 year old biker not affiliated with any club (or “gang” in the police vernacular).
And the best reporting I have seen indicates that ALL the dead were killed at the hands of police shooters. Also, tellingly, all their wounds were gunshot wounds - NO knife or stabbing wounds on any of the victims.
The fog of journalism.