David Amesquita isn’t afraid of ghosts. After all, he practically grew up in a cemetery. Raised by his grandparents in an old house that’s since been demolished and replaced by a commercial strip across the street from Westfield Old Orchard mall, Amesquita and his pals would spend hours in Memorial Park Cemetery in Skokie. They explored gravestones and pulled fish from the ponds amid the plots that would become final resting spots for Brady Bunch dad Robert Reed, Bears great Sid Luckman, newspaperman Irv Kupcinet and landscape designer Jens Jensen. “We did stupid teenager stuff,” he said.