A February 2016 photo taken by Mohamed Ben Khalifa shows a member of the Libyan security forces with a document in Arabic describing weaponry found at the site of U.S. airstrikes on an Islamic State camp in Libya. Freelance photojournalist Ben Khalifa was killed during clashes on January 19. (AP/Mohamed Ben Khalifa/File)
A February 2016 photo taken by Mohamed Ben Khalifa shows a member of the Libyan security forces with a document in Arabic describing weaponry found at the site of U.S. airstrikes on an Islamic State camp in Libya. Freelance photojournalist Ben Khalifa was killed during clashes on January 19. (AP/Mohamed Ben Khalifa/File)

Libyan photojournalist killed by shelling during Tripoli clashes