The Day the Old Man Died

what happens

Zenigata, barring Lupin's path today the same as he has every other day, is suddenly shot in the middle of his attempted arrest! Fujiko is burning with rage, but Paris Police Superintendent Truffaut, who has declared that the killer is Lupin, is himself suspicious. Following the regulations concerning death in the line of duty, he tries to have Zenigata's corpse cremated, but just when he finally gets it to the site, after strenuous efforts, it abruptly gets up?