Pakistan police say they have detained a man suspected of involvement in last month ' s murder of country’s Federal Investigation Agency prosecutor Chaudhry Zulfiqar.Pakistani police on Friday announced Abdullah Omar, a 22-year-old law student and son of a dismissed Army officer, had been arrested in a hospital where he was being treated for a bullet wound. "Abdullah Omar was part of the team that ambushed Chaudhry Zulfiqar near his residence in Islamabad on 3 May," senior police officer, Jamil Hashmi said. "He [Omar] was hit by retaliatory fire from his [Chaudhry Zulfiqar's] bodyguard, and was whisked away from the scene in a car by his companions," he added. Chaudhry Zulfiqar Ali had been investigating the assassination case of former Pakistani Prime Minister Benazir Bhutto. He was shot dead in Islamabad on 3 May when he was on his way to attend the proceeding of Bhutto murder case in the anti-terrorism court in Rawalpindi. Bhutto was killed in a gun-and-bomb attack on December 27, 2007 as she was leaving an election rally in the city of Rawalpindi. Former Pakistani President Pervez Musharraf has been accused of failing to provide enough security for Bhutto after she returned from exile on October 18, 2007. On Friday, Musharraf was formally arrested on suspicion of ordering the killing of Baluch politician Akbar Bugti in 2006, according to a ruling by an anti-terrorism court. Musharraf was president of Pakistan when Bugti, the main leader in the southwestern province of Balochistan, died during an army raid in August 2006. He is also facing charges of illegally putting judges under house arrest, after he sacked Chief Justice Iftikhar Muhammad Chaudhry, declared a state of emergency, and suspended the constitution, during a crackdown on the judiciary in 2007.