KAMPALA—Gunmen opened fire at a car carrying a Ugandan government minister in an attempted assassination on Tuesday, wounding the former army commander and killing his daughter and driver, the military and local media said. Four attackers on motorcycles sprayed bullets at a four-wheel-drive vehicle carrying General Katumba Wamala, the minister of works and transport, in the Kampala suburb of Kisasi, local television station NBS reported. President Yoweri Museveni condemned the attack, blaming it on criminals, terrorists and “pigs who do not value life.” In a Twitter post, he said that authorities already had clues in the case, and the criminals responsible would be defeated. Images circulating on social media showed Wamala with his mouth open, in apparent distress beside the car and his light-colored trousers splattered with blood. Police investigators later combed the area, poring over bullet holes in the car’s windows and body and casings on the ground. The …