NEW YORK — The accused “duffel bag killer” pleaded guilty Wednesday in the savage stabbing death and dismemberment of his longtime married lover during a final and fatal argumentin her Queens basement. David Bonola, 44, had already confessed to police before his manslaughter plea to the gruesome April 16 killing of Orsolya Gaal, whose butchered remains were stuffed into a duffel bag and dumped in a nearby park after his surprise visit to her home ended in a bloodbath. Bonola faces a 25-year prison term at his Nov. 16 sentencing for the lethal lovers’ quarrel in which Gaal was stabbed dozens of…
