BISSAU - Guinea Bissau's former head of military intelligence, Colonel Samba Diallo, was shot dead at a bar near his residence in the capital Bissau late on Sunday, hours after a presidential election, witnesses and a security source said.Diallo was among the military officials deposed and temporarily jailed in an April 2010 coup within the military that ousted Army Chief of Staff Jose Zamora Induta.A nearby resident told Reuters that soldiers fired on Diallo just before midnight and his body was taken away. Another witness said he saw Diallo's body at a hospital, and a security source, speaking on condition of anonymity, confirmed the killing.