Benghazi Security Chief Killed by Gunmen: Libya Col. Farag al-Dersi shot dead by three gunmen By Newser Editors and Wire Services Posted Nov 21, 2012 8:21 AM CST 3 comments Comments An anti-Libyan leader Moammar Gadhafi gunman holds up his AK-47 as he fires in the air to celebrate the freedom of the Libyan city of Benghazi, Libya. (AP Photo/Hussein Malla) (Newser) – Libya's deputy interior minister says gunmen assassinated Benghazi's security chief overnight. Col. Farag al-Dersi was shot dead while returning from work. "Three men opened fire, killed him, and then fled the scene," says the minister, adding that it was unclear who is behind the killing. The country's second largest city has witnessed a series of assassinations and car bombs over the past months by unidentified assailants targeting mainly security officials who worked under the rule of ousted dictator Moammar Gadhafi. But the New York Times says that in recent days the focus has shifted, with attacks more often striking "symbols of the fledgling state and its allies."