Stephen Mara, grandson of former Giants' owner, charged with arson NEW YORK, Nov. 6 (UPI) -- The grandson of former New York Giants owner Wellington Mara was charged with arson after he allegedly set fire to several motorcycles, New York police said. Stephen Mara, 26, was charged with five counts of arson in two separate incidents. He allegedly set motorcycles on fire outside his Manhattan home on Oct. 31, and again on Tuesday, the New York Daily News reported Wednesday, adding he was reportedly angry over motorcyclists revving their engines late at night. The newspaper says the Oct. 31 incident involved the burning of two parked motorcycles. The fire spread to a parked car and to the wall of a nearby building. Police said Mara used a lighter to set fire to street debris to burn another motorcycle Tuesday and the fire spread to a parked car.