[ChessExpert]

Would that device have wires sticking out of it? or a clock attached to it? This was no accident.

That seems to be the likeliest interpretation of "device."

If I was a CNN editor and wanted to sanitize these reports further, I'd keep pushing the "wall of flame" quote from an anonymous source and drop all quotes about devices:

"It appears there was a device, but we don't know whether the person brought it in with him, or it he was an innocent party, or if he was a suicide, we just don't know," Staff Sergeant Don Cole said of the device inside the restaurant.

"It's not something that just blew up by itself, it was some device."

[Sacajaweau]

If you have a gas can and are on foot, either there is a car nearby or at home. Either way, your keys are in your pocket along with your ID.

This ain't over.