The Cisco Kid: Quicksilver Murder(2/12/1952) Season 2, Episode 24. A crooked prosecutor (Hugh Prosser) robs quicksilver shipments and then uses chemical weapons to commit murder. Cisco (Duncan Renaldo) and Pancho (Leo Carrillo) investigate. Duncan Renaldo, Leo Carrillo, Lois Hall, Bill George, Hugh Prosser, James Kirkwood, Joe Forte, Hunter Gardner, Director: Paul Landres.