Former Pakistan prime minister Benazir Bhutto prays at the grave of her father Zulfikar Ali Bhutto in Garhi Khuda Bakhsh near Larkana, 480 km (300 miles) from Karachi December 22, 2007. REUTERS/Nadeem Soomro

Pakistani President Asif Ali Zardari has written a letter to the Supreme Court to review the hanging of Zulfikar Ali Bhutto — the country’s first popularly-elected prime minister — over three decades ago.