 When Sobukwe died in 1978, he was succeeded by Potlako Leballo.The PAC then split into two following a partially successful coup by David Sibeko to head the Presidential Leadership Council in 1979.The assassination of Sibeko in Dar es Salaam, Tanzania on 12 June 1979 and the death of Leballo in January 1986 inaugurated the demise of the PAC.