Altamont Rock Concert--December 6, 1969

I'll let Rolling Stone tell the story in one of their first (and best) pieces of reportage not written by Hunter S. Thompson...

http://www.rollingstone.com/music/news/the-rolling-stones-disaster-at-altamont-let-it-bleed-19700121

Letting it Bleed: Joel Selvin Takes on Altamont

http://www.counterpunch.org/2016/09/09/letting-it-bleed-2/

Chicano Moratorium August 29, 1970

The protest against the war in Vietnam and La Raza in Los Angeles on August 29, 1970 was broken up by armed police who attacked the crowd and then just kinda' went crazy.  A popular liberal Chicano journalist named Ruben Salazar was murdered by police.  Hunter S. Thompson, who was hanging with his friend and attorney Oscar Zeta Acosta (later known as Dr. Gonzo), wrote a great piece about the protest that appeared in Rolling Stone in 1971....here is a link (there's a pdf you need to click on to read the piece)
http://www.eastofborneo.org/archives/strange-rumblings-in-aztlan

Oscar Zeta Acosta wrote an entire book about the protest and the movement.  That book is titled The Revolt of the Cockroach People.  
http://nationalbrownberets.com/files/PDF-Revolt_Cockroach_People.pdf

Hunter S. Thompson 1972

As I noted in the post prior to this, Hunter S. Thompson and Norman Mailer are my go-to writers when it comes to topnotch US presidential campaign coverage.  I linked to an excerpt from Mailer's book on 1972, St. George and the Godfather yesterday.  Today, I am providing a link to a collection of random excerpts from Hunter S. Thompson's classic Fear and Loathing on the Campaign Trail 1972...
http://www.rollingstone.com/politics/news/timewarp-campaign-72-19730705

enjoy it and weep