So you did NOT have the story factually straight. An intelligent person would just admit it. You might take notice that I did NOT blame the Hells Angels for the incidents at Altamont. They should have never been contacted. They had no business attempting to handle such an event. I blame the people with no experience assigned to throw together a concert last minute.
The Stones and the Dead's management teams were responsible for the gathering and therefore responsible for any and all liability for what happened.
Who ever thought that the Hells Angels would conduct themselves in a professional manner for $500 worth of beer was a complete moron and their employers should have been sued big time. The $25,000 demanded by Barger was after the fact. He should have been jailed for extortion. No one of authority guaranteed or was in any position to guarantee that amount.
Even though the Angels that went after Jagger were not successful they should have been arrested for attempted murder.
Barger is an idiot and a thug. He is well suited to trafficking in meth and weapons. If he had any brains he would have stayed away from this concert as it did what was obviously going to be the predictable outcome. The last thing a criminal such as Barger should ever do is set himself up for more scrutiny considering the business he was in.
I know quite a bit about concert promotion and the logistics to pull off a successful event. Obviously the people attempting to arrange the security for Altamont did not have any experience in how to maintain security at an event of this magnitude.
It sounds like you are attempting to stick up for the Hells Angels in this incident. That makes you as stupid as they are.

I think you're wrong about the plot to kill Jagger since I got my information from a chapter president more powerful than Barger at the time. Do I respect the HA? Damn right I do because they are warriors, a concept you don't understand. They don't hide who they are and regular citizens have nothing to fear from them as long as the bikes or old ladies aren't touched...that will get you lit up, maybe killed. You sit there spewing your leftist horseshit and brag about being a "promoter" but I doubt you ever handled anything near the size of Altamont. That concert was doomed from the beginning; the Angels were doing what they said they'd do. If Marty Balin had kept his mouth shut he wouldn't have gotten his bell rung. Grace Slick was laughing about it. And again, if that Angel hadn't taken down the black asshole with the pistol, Jagger and maybe more of the band might have been shot on stage. Jagger knew that....I've seen the tape of him watching it and the freeze-frame of the pistol in his hand. The Angel was charged and found not guilty by self-defense. When the Angels told Jagger the price for his defense was $25K he should have sent them twice that. Instead he disrespected the request for pocket-change to him. He's very lucky that storm came in that night.