Disgruntled Air Traffic Controller/Alleged Serial Bomber On the Loose

Well okay, I'm making a leap of faith assuming that this man lost his gruntles, but it seems like a reasonable guess.

Either way, have you seen this man?

Grand Junction, CO
Suspected serial bomber Robert L. Burke was "like a light switch" with a personality that swung from calm to belligerent without notice, a bicycle shop owner who knows him said Monday.

"It was weird. He'd be calm, then all excited and then intense, really intense, and he wanted answers right now," said Brad Stewart, owner of Bicycle Outfitters...

Burke, 54, an ex-air traffic controller, is wanted on a federal warrant for allegedly making and setting five bombs in Grand Junction last week, three of which exploded and all of which are believed to be targeted against his former co-workers.

The bombs are said to strongly resemble another found in Tennessee.

Given Burke's obvious knowledge of air traffic and airport operations, the ATF has deemed him "extremely dangerous" and a potential threat to airports.  Burke's former employer, the Serco Group, which provides air traffic control services throughout the western U.S., fired him in 2004.

Being fired is of course one of those events that has been known to trigger simiarly acute disgruntling scenarios in the past.  Add to that the tremendously high-stress nature of the life of an air traffic controller (and his potentially dangerous expertise) and you've got yourself a thorny situation.

Be on the lookout.