What happened:
On the morning of Dec. 1, 2007, Alfred J. Chavez, a U.S. Army Corps of Engineers Park Ranger, noticed someone had tampered with a lock and chain on the gate of a Corps-owned pump house near Abiquiu Lake, N.M.
As Mr. Chavez investigated, two men left the pump house. One of the men pulled out a revolver and fired two shots at Mr. Chavez. One bullet whizzed by Mr. Chavez's head, but the other struck him just above the right knee. The men fled and have not been apprehended. Mr. Chavez survived.
The suspects:
Suspect #1 (shooter): White or Hispanic male in his early to mid-20s, approximately 5 feet 6 inches tall and weighing about 140 pounds. He had black hair and a very pronounced tattoo of some sort of figure on the side of his neck.
Suspect #2: White or Hispanic male, late teens to early 20s, approximately 5 feet 8 inches tall and weighing about 200 pounds. He had short, light brown hair and a moustache. The suspect had a colored tattoo on at least one forearm.
The suspects were last seen leaving the area in a 1990s-model white two-door Ford F-250 with tinted windows. The vehicle had a single step under each door, chrome rims and body damage on the passenger-side tailgate area.
Below is a similar truck:

If you know something:
Anyone with information on this incident is asked to call the Albuquerque FBI at 505-889-1300 (24 hours), or send a tip online at https://tips.fbi.gov.
More Information:
In Spanish
Official FBI Press Release