NYPD searching for brute who smashed 10-year-old boy’s head into car windshield

A cowardly brute grabbed a 10-year-old boy and slammed his head in the windshield of a parked car in Brooklyn last week, according to police. NYPD detectives are looking for the assailant who attacked the boy just after 4 p.m. on Wednesday outside of 510 Ocean Parkway in Kensington after the pair got into a…