RENO, Nev. - Jurors weighing murder charges in a deadly Nevada casino shootout between rival motorcycle gangs got a preview Tuesday of surveillance video prosecutors say will show the gunman carried out an organized hit on one of the highest ranking Hells Angels in the country.

Ernesto Gonzalez, ex-president of the rival Vagos chapter in Nicaragua, is accused of killing Jeffrey "Jethro" Pettigrew, president of the Hells Angels' chapter in San Jose, Calif.

Prosecutors said in opening statements Tuesday he shot Pettigrew four times in the back after a brawl broke out on a busy Sparks casino floor on Sept. 23, 2011.

Defence attorneys say it was self-defence. They're scheduled to make their opening statements Wednesday in Washoe District Court in Reno. The trial should last two to three weeks.