Guardian article
Cliffs:
Big regularly scheduled Texas biker meeting
Brawl erupts between members of Cossacks and Bandidos gangs
Police descend
Everybody starts shooting at everybody else
9 members of Cossacks and Bandidos dead (all gunshots)
170 arrested, may face Felony Murder charges as part of "criminal conspiracy"
Police claim to have found over 1000 weapons
No idea at this time how many (if any) were shot by police vs shot by each other