Prosecutors add the man was caught with his pants down.
The man hasn't been charged yet, but authorities believe he is the guy who's been leaving butt prints on windows around town.
Police say beginning in the spring of 2007, some guy has been greasing up his private parts -- front and back -- and pressing them against windows.
The butt prints have been found on everything from schools to churches.
Cherry County Attorney Eric Scott says all the butt prints appear to be the work of -- quote -- "a lone deviant."