The New Jersey college student who died on spring break last week tragically plunged to his death from the third floor of a Puerto Vallarta, Mexico hotel while trying to help a girl retrieve an ID or phone she dropped from her balcony, The Post has learned. Henry Meacock, 19, perished at the Melia Hotel on March 15 while trying to jump from one balcony to another, the Jalisco state attorney general and medical examiner told The Post. The Ohio State University student was the second person to fall from the third floor of the Melia this month, Noticias Puerto...