On July 17th, 1889, the residents of Clayton County, Iowa woke up to news of the worst crime in their history. A Civil War veteran John Elkins and his young wife Hattie had been murdered in their bed in a grisly attack. Their two children escaped to raise the alarm. But something was off. There were no suspects. There were no clues. To quote the local newspaper, the whole thing was “surrounded in a veil of mystery.”