Pakistan's interior minister blamed al-Qaida and the Taliban for Thursday's assassination and said another key opposition leader, Nawaz Sharif, is also under threat of militant attack.
The government released a transcript Friday of a purported conversation between militant leader Baitullah Mehsud and another militant.
"It was a spectacular job. They were very brave boys who killed her," Mehsud said, according to the transcript.
Skull fractured by sunroof handle. Uh huh. Sure. You bet.