Generate a correct and concise answer for the question based on the words in the context.

Context : The Roviana rail (Gallirallus rovianae) is a species of bird in the family Rallidae. 
Question : Is the taxon rank of Roviana rail species or genus?
species

Context : John E. Hatley is a former Master Sergeant in the United States Army serving a 40-year sentence in the Fort Leavenworth Disciplinary Barracks for the murder of four Iraqi detainees. 
Question : Which crime John E. Hatley is considered to have commited?
murder

Context : Joseph Corbett, Jr. (October 25, 1928 -- August 24, 2009), a former Fulbright scholar, became the 127th fugitive named on the FBI's Ten Most Wanted list, placed there March 30, 1960 for the kidnap and subsequent murder of Adolph Coors III, heir to the Coors Beer fortune. 
Question : Which crime led to the conviction of Joseph Corbett, Jr.?

murder