What events inspired Huey Newton's founding of the Black Panther Party as noted in the nonfiction book, The Warmth of Other Suns?

Huey Newton, a political activist, was born in Monroe, Louisiana, the same town where Pershing was born. When he was a youngster, he and his sharecropper parents left Monroe during the Great Migration and headed for Oakland, California. The family was compelled to leave after Huey’s father had nearly been lynched. As he matured, Huey became disillusioned by the conditions that blacks lived with in Oakland and virtually everywhere in America and in 1966 founded the Black Panther Party.