Original sentence: The first strike (with 30mm caliber cannon) was directed at a group of people apparently presumed to be insurgents by the US Army, two of whom turned out to be Reuters news staff, Saeed Chmagh and Namir Noor-Eldeen, whose cameras were mistaken for weapons
Edited sentence: The first strike (with 30mm caliber cannon) was directed at a group of people allegedly presumed to be insurgents by the US Army, two of whom turned out to be Reuters news staff, Saeed Chmagh and Namir Noor-Eldeen, whose cameras were mistaken for weapons