A video purportedly of a Jordanian who blew up CIA agents in Afghanistan has shown him vowing revenge for Pakistani Taliban chief Baitullah Mehsud's death. <br/> <br/>In a clip broadcast on al-Jazeera TV, a man said to be bomber Humam Khalil Abu-Mulal al-Balawi says Mehsud must be avenged inside and outside America. The footage appears to show him next to Mehsud's successor, Hakimullah Mehsud, although he is not named in the video. However, the clip's authenticity is unconfirmed. <br/><br/>Eight people died in the bomb attacks in Afghanistan Seven were US CIA agents and one was a Jordanian intelligence officer. The attack at Forward Operating Base Chapman in Afghanistan's Khost province was the deadliest against US intelligence officials since the US embassy in Beirut was bombed in 1983.