Is there a sniper on the loose?

TBD 7 is reporting there were more shots fired at the Marine Corps Museum this morning. The shootings have been linked to the one at the Pentagon and the recruiting station in Centreville. Do we have a sniper on the loose that hates the military (or USMC)? Do the authorities know more than we do and are keeping it hush hush? This is a very busy week in Washington. I know most people say every weekend is busy in Washington, but this is an exception. The Marathon draws thousands of runners and not to mention the spectators, and international media and tourists. We will also be having the Stewart/Colbert restore sanity rally. Are we protected? I believe the authorities know more than we do and are keeping it  a secret. Don't forget, it's also Halloween, which means people in costume all weekend and I'm willing to bet we'll see many runners in costume. Let's hope that we are protected, not as much from the ground but from the air as well. It appears to me this sniper is traveling via car or motorcycle and can strike quickly and make a quick getaway. He's probably capable of perching himself from heights and quite a distance. Keep your eyes peel.

Source: Rudykins; Picture from GOOGLE PICTURES