The Haslett brothers killed Leonard and Head during the hold - up .
In July 1881 , Bill Leonard and Harry Head attempted to rob William and Isaac Haslett 's general store in Hachita , New Mexico .
The Haslett brothers killed Bill Leonard and Head during the hold - up .
In July 1881 , Bill Leonard and Harry Head attempted to rob William and Isaac Haslett 's general store in Hachita , New Mexico .