The Lives of Harry Lime - Mexican Hat Trick

Harry is down on his luck in a little cantina in Mexico City.  His friend, Diego soon hands Harry a note from Bollo, a recently deceased pickpocket, who wants to clear his name by making a last confession to the police.  Harry agrees to take care of the note, after reading it.  It seems Bollo had hidden some evidence that could have exonerated a wealthy man named Vincente Coelho of murder.  Harry believes this information might be valuable to the Coelho family and, of course, himself.