gun his character Jayne  uses at the end of the film is nicknamed "Lux", after the message  board handle (LuxLucre) of devoted fan Kerry Pearson. Pearson, who  died of complications from diabetes, was best known for creating fan  art that featured the characters from _"Firefly" (2002)_ (qv) in a  _"South Park" (1997)_ (qv) cartoon style.