[jdege]

They weren't shell casings, they were fragments of concrete thrown up by the incoming fire.

[republicangel]

thanks for posting that- they said that on Fox news- incoming shots throwing concrete pieces

[cricket]

"They weren't shell casings, they were fragments of concrete thrown up by the incoming fire."

. . .could this have started with just the sun reflecting off the lens; looking like a flash from a gun perhaps. . .

WHATever; tanks in the street, bombs being dropped on a city; non-embedded reporters standing on a balcony in flak jackets and aiming cameras. . .

. . .'shots happen' in that environment. . .