I'm sure he did. Half of Death Row was undercover police agents. It's nothing for them to confirm some fake shit. FBI been pulling that shit since Afeni was head of the Harlem Black Panthers.
Ask Pac's uncle Mutulu about what him and Pac was working on before Pac got clipped. Ask Ron Karenga and Geronimo Pratt who was behind the murder of Bunchy Carter, and why ex-black panthers and Afrikan Cultural Nationalists became the Crips and Bloods, respectively. Ask Louis Tackwood how the LAPD get down.
That fake ass manufactured east coast / west coast beef was for suckas and squares to believe in... There's people in the grave and people still in prison behind the REAL shit.