So far all we have heard is the “official” explanation.
We will know pretty soon what really happened. My educated guess is the real answers are somewhere between an innocent gathering of bikers, with a couple getting into a fight and a gathering outlaw drug smuggling biker gangs that erupted into a gun fight.
I would like to see some video of the event. It would be normal for the police to video the area for evidence and identification purposes.
No one seems to be willing to release video; hard to believe there is none.
So far, there seems to be a conspicuous lack of firearms confiscated, or shell casings near the people who were shot.