"Was I in the right place at the wrong time, or was I in the wrong place at the right time?" the photojournalist, Tom Fox of The Dallas Morning News, said after a man opened fire at a federal courthouse.

It wasn't until he took the photograph Monday morning (local time) that Tom Fox, a longtime photojournalist, realised what he was looking at: A man wearing tactical gear and carrying a military-style rifle was standing outside a federal courthouse in Dallas, looking his way.

Moments earlier, Fox, who works for The Dallas Morning News, had heard what he thought was