By Political Corespondent- Zanu PF stalwart and the last surviving Dare Rechimurenga member, Rugare Gumbo, has shed light on the identities of those responsible for the assassination of Herbert Chitepo. Chitepo, the esteemed leader of Zanu's external wing, lived in exile in Lusaka, Zambia. On the fateful morning of March 18, 1975, a bomb planted beneath his…