The assault on the palace began shortly afterward. During the attack Amin still believed the Soviet Union was on his side, and told his adjutant, "The Soviets will help us". The adjutant replied that it was the Soviets who were attacking them; Amin initially replied that this was a lie. Only after he tried but failed to contact the Chief of the General Staff, he muttered, "I guessed it. It's all true". There are various accounts of how Amin died, but the exact details have never been confirmed. Amin was either killed by a deliberate attack or died by a "random burst of fire". Amin's son was fatally wounded and died shortly after. His daughter was wounded, but survived. It was Gulabzoy who had been given orders to kill Amin and Watanjar who later confirmed his death. The men of Amin's family were all executed, while the women including his daughter were imprisoned at Pul-e-Charkhi prison until being released by President Najibullah in early 1992. After Amin's death on 27 December 1979, Radio Kabul broadcast Babrak Karmal's pre-recorded speech to the Afghan people, saying: "Today the torture machine of Amin has been smashed". Karmal was installed by the Soviets as the new president, while the Soviet Army began its intervention in Afghanistan that would last for nine years.