Actors from “Drop Dead!” depict a scene from the comedy play. (Courtesy of Jason Ounpraseuth) Jason Ounpraseuth Connector Contributor A sold-out crowd was perplexed and left with laughs after watching the murder-mystery comedy “Drop Dead!” put on by the Off-Broadway Players Friday night at UMass Lowell’s Comley-Lane Theater. “Drop Dead!” was written by Billy Van…