In 1858, a German emigrant named Frederick Brunckow was digging for silver about 8 miles southwest of what -- 20 years later -- would become Tombstone. He built a small adobe cabin for himself complete with a tin roof and a fireplace, and many murders would occur there over time.
The first (that we know of) was Brunckow himself and two associates. They were killed for their supplies and a few head of livestock by some Mexican laborers Brunckow had hired. (Brunckow was killed with a rock drill and his body thrown down his own mineshaft.) Soldiers from Fort Buchanan were summoned, and buried the three near the cabin the next day. The killers were never apprehended.
After that, it was one killing after another, and the place began to seem cursed. In 1873, Milton Duffield, a former U.S. Marshal, approached the cabin and was killed by a man standing in the doorway with a shotgun. In 1897, a gang of five outlaws, fighting over the spoils of a robbery, shot each other to death. Over the years, there were many others, some of the names simply unknown. Most of the 21 (or 26 -- at some point they lost count) who died here are buried here.
It's just a ruin now, as these pictures attest. Around Tombstone, it's known as "the Brunckow place." I'm going out there again one of these days. With a sleeping bag.