In June of 1917, a strike broke out after the deadly Speculator Mine disaster in which 164 lives were lost. Frank Little, one of the Industrial Workers of the World's toughest, most courageous and impulsive leaders, came to Butte to support the strike and draw miners into the organization. The Industrial Workers of the World, an industrial union, was committed to the overthrow of the capitalist system by a working-class revolution. Little's speeches against the Anaconda Company, the draft, and World War I were supported by many Butte miners but aroused fear among Company executives and others. Although the Company and local officials sought his arrest for treasonable utterances, U.S. district attorney Burton K. Wheeler found insufficient evidence to indict him. Early on the morning of August 1, six masked men entered Little's boarding house at 320 North Wyoming Street, forced him in his underwear to a waiting car, dragged him a short distance outside town tied to the back of the car, severely beat him, and hanged him from a railroad trestle. Pinned to his body was the message, "Others take notice, first and last warning," followed by the Montana Vigilante ultimatum, "3-7-77." Little was buried in Mountain View Cemetery with 6800 in the funeral procession, the largest in Butte's history, and no one was ever charged with the crime.