[DoughtyOne]

That was one of my concerns. I didn't mention it because I didn't think it would be right to do so without some indication that it could be true. Evidently you've found that indication. I am intensely angered that Federales can fire into the United States with impugnity.

[in the Arena]

It's interesting...the original story mentioned that the "barrage of fire" came from south of the border but I have not heard a follow up. The runner with the long gun was killed, but no US LEO fired his weapon. The authorities on the Mexican side fired the shot that killed the runner...and I'm assuming the shot that killed the Park Ranger. Ballistic tests will answer this.