Darwinism at work? Nine bikers killed at sports bar in Waco Texas?

This seems strange on so many levels. link

- Nine? Why not more? I assume that there were more than nine guys in the bar – why was the death toll only nine? Five biker gangs were involved. Were the deaths all from the same gang, or were they distributed?

- What sports argument could have gotten so heated that it was worth killing each other?

- To what degree did Texas’ Open Carry law play a role? (when it got to the guns level)

- Were these all Harley riders?

- The article said that it started with fists, moved to chains, then knives, then guns. Didn’t anyone see that this was not going to end well?