Ah the romantic old west. The good old days. Unless you were a lawyer responsible for prosecuting criminals.
On February 1st, 1896, Albert Jennings Fountain and his eight year old son Henry were traveling home to Mesillia from Lincoln. Fountain was a Civili War vet and NM legislator, in addition to a prominant lawyer, the last two probably not real popular around those times. Seems Mr. Fountain was carrying indictments against a bunch of cattle rustlers from the area to include Oliver Lee. Never to shy away from danger, CPT Fountain had defended Billy the Kid in Mesilla in 1881. They both disappeared around Chalk Hill, their bodies never found. Must have been a big gang of guys because in June 1865, Fountain was seriously wounded while pursuing hostile Apaches. He spent a night trapped under his dead horse, with a bullet in his thigh, an arrow in his forearm, and another arrow in his shoulder. Something tells me that a guy like doesn't die easily.
Lee, and his employee James Gililland became suspects. They were chased down by Pat Garrett and his posse and a shootout ensured in Alamogordo, but the suspects escaped. Three years after Fountain and his son's disappearance, Oliver Lee and James Gililland were tried for the Fountains' murders, but both were acquitted. You may have better luck finding Albert and Henry's killers than this cache.
PS- My wife made me change this from a 3.5 to a 4 difficulty. Let me know if it should be a 4.5. Yeah, it may be hard.