A Brooklyn grandmother was allegedly killed by her younger husband inside their Brooklyn apartment – and the gruesome scene was discovered after her concerned son called the cops to check on her, authorities and sources said. Maria Ines Granda, 59, was found face-down on the sofa around 9:30 a.m. inside the apartment on 79th Street near Third Avenue in Bay Ridge, according to cops and law enforcement sources. Members of the NYPD’s Emergency Service Unit made the grisly discovery after the Granda’s son called for a wellness check, the sources said.