Career
Mabuku, a former Democratic Turnhalle Alliance National Council member, fled to exile in Botswana with former Delta Tau Alpha leader Mishake Muyongo following a failed separatist revolt in 1998 in the Caprivi Strip against the Namibian government. Mabuku continued coordinating Delta Tau Alpha activities from the Kagisong refugee camp in Botswana and continued to support Delta Tau Alpha president Mishake Muyongo, who is in exile in Denmark. He died in exile in Botswana on July 13, 2008 after a long illness.