NBC News now reports that Kevin Sites is accusing the Marines of up to four unjustified killings: U.S. investigation of mosque killing is expanded. (Hat tip: Jheka.)

Sites, in the first report on the incident on Monday, said the man who was killed didn’t appear to be armed or threatening in any way, with no weapons visible in the mosque.

Earlier in the footage, as the Marine unit that Sites was accompanying approached the mosque, gunfire can be heard from inside. Marines who were already in the mosque emerge, and a lieutenant in the approaching unit asks if there were insurgents inside and if the Marines had shot any of them. An exiting Marine can be heard responding affirmatively. The lieutenant then asks if they were armed, and the Marine shrugs.

After the Marines that Sites accompanied entered the mosque, the video showed two other men slumped by a wall. Sites’ account said the men, who were hurt in the previous day’s attack, had been shot again by the Marines on Saturday.