NEW YORK — The cold-blooded subway shooter who randomly gunned down a Goldman Sachs researcher on a Manhattan-bound train has been busted, police said. Andrew Abdullah surrendered Tuesday afternoon and was expected to be charged with murder in the senseless Sunday slaying of Daniel Enriquez, 48. The arrest came after all-day negotiations between police and a New Jersey clergyman. Abdullah arrived later in a minivan, and was quickly taken into custody. Enriquez, heading to a brunch with friends, was sitting in the last car of a Manhattan-bound Q train as it approached the Canal St. station when…
