A suicide bomber killed three of Syrian President Bashar al-Assad's top military officials on Wednesday, security sources said, the worst blow to Assad's high command in the country's 16-month-old rebellion.
The bomb killed Assad's powerful brother-in-law, the defense minister and a top general, bringing the battle to the heart of Assad's powerbase and sparking fighting across Damascus.
Residents, fearing fierce retaliation by Assad's forces, said army helicopters fired machineguns and in some cases rockets at several residential districts....