"Neyla Pekarek, the cellist and classically trained vocalist formerly of The Lumineers, was in college when Rattlesnake Kate first rocked her world. She happened upon the true story of the frontierswoman, who singlehandedly killed 140 snakes as they encroached on her and her son, at Greeley, CO's History Museum. For two hours, Kate shot at them and bludgeoned them with a "No Hunting" sign after running out of bullets, then made a flapper-style dress,...