The family of the black teenager shot dead by police in the US appeals for calm after police reveal he was a suspect in a robbery. Reports suggest Islamic State militants in northern Iraq massacre at least 80 men from the Yazidi faith in a village and abduct women and children. Elsewhere Russia's defence secretary gives a guarantee to his US counterpart there are no military personnel in its aid convoy for Ukraine. The Ice Bucket Challenge craze goes global with people pouring cold water over themselves and posting videos on the internet for charity. We hear the latest headlines from Kenya. And Tim Vickery and Mark Gleeson take your calls as part of the World Football Phone-in.