The Guinean Prime Minister, Kabine Komara, has hailed the decision of UN Secretary-General Ban Ki-moon to investigate the 28 Sept massacre of protesters in Conakry by elements of the Guinean military. In a broadcast to the nation Wednesday, the Prime Minister said the decision would make it possible to identify all those involved in the killing of civilians who were protesting an alleged plan by mili tary leader Moussa Dadis Camara to transmute to a civilian leader by participating in the forthcoming presidential election.