Centerfolds Cabaret, a South Jersey nightclub, has voluntarily shut down amid an investigation into the death of a 19-year-old man who was last seen leaving the club early Sunday, police confirmed Friday. Three men have been charged by Pleasantville police with assaulting Irving Mayren-Guzman, of Egg Harbor Township, who went missing for two days after leaving the club between 2 and 4 a.m. Sunday. Police used drones, a helicopter and K-9s to search the area where he was last seen. His family and friends, who gathered near the club to seek answers in the case, handed out fliers Monday near wher…