The Mungiki militia , which are loyal to Kibaki 's Kikuyu tribe , began as a religious sect , but over the years has morphed into a gang that runs protection rackets -- particularly in the slums . U.N. investigator says widespread killings by soldiers . Investigator says there is no accountability for alleged killings . Calls for resignation of attorney general , police commissioner . However , military deny accusations .
U.N. investigator says widespread killings by soldiers . Investigator says there is no accountability for alleged killings . Calls for resignation of attorney general , police commissioner . However , military deny accusations .