Bhutto aide said they doubted militant commander Baitullah Mehsud was behind the attack on the opposition leader and said the government`s claim that she died when she hit her head on the sunroof of her vehicle was "dangerous nonsense." Meanwhile, attackers opened fire at a motorcade of Bhutto supporters as they returned to Karachi after her funeral, killing one man and wounding two, said Waqar Mehdi, a spokesman for Bhutto party. The government said mass rioting has killed 38 people and caused tens of millions of dollars in damage. In Rawalpindi, thousands of Bhutto supporters spilled onto the streets after a prayer ceremony for her, throwing stones and clashing with police who fired tear gas to try and subdue the crowd. President Pervez Musharraf told his top security officials that those looting and plundering "must be dealt with firmly and all measures be taken to ensure (the) safety and security of the people," the Associated Press of Pakistan reported. AP