On 30 December 2007 after the assassination of his wife, Asif Zardari became the co-chairman of the PPP, along with his son Bilawal Bhutto Zardari, who is currently studying at Oxford. Zardari has three children: Bilawal, born on 21 September 1988 in Karachi, Bakhtwar, born in 1990 and Aseefa, born in 1993. __