Wide shot of Kansas City Massacre aftermath. This event, also known as the Union Station Massacre, saw the deaths of Frank Nash, an Oklahoma train and bank robber; William J. Grooms, a Kansas City police officer; Frank E. Hermanson, another Kansas City police officer; Raymond J. Caffrey, an FBI specialist; and Otto Reed, the chief of police for McAlester, Oklahoma. Outlaws Vernon Miller, Charles (Pretty Boy) Floyd, and Adam Richetti were attempting to free Frank Nash from law enforcement custody.