Beau bust in B'klyn crash slay

A 21-year-old premed student died in a horrific Brooklyn car crash early yesterday - and the driver, her 19-year-old boyfriend, is charged with vehicular manslaughter, authorities said.Carolina Berscakiewicz, of Middle Village, Queens, was decapitated when the 2009 Mazda driven by Sebastian Worwa slammed into a utility pole on Johnson Avenue...