Four police officers have been arrested in connection with the killing of Mthokozisi Ntumba. Ntumba was shot and killed last week, during a protest of Wits students in Braamfontein. - Smile 90.4FM

Four police officers have been arrested in connection with the killing of Mthokozisi Ntumba. Ntumba was shot and killed last week, during a protest of Wits students in Braamfontein.