A man helping to cut down a tree on his property in Hillsborough on Sunday was killed when it fell on him, authorities said. Frank Abate Jr., 68, was lying in the driveway of his home on the 700 block of Riverside Drive when emergency responders arrived at about 11:30 p.m, Hillsborough police said in a statement Monday. Abate had tried to move away from the falling tree but it struck him in the head, officials said. Abate was pronounced dead at the scene. Additional information was not immediately available. The investigation is ongoing. Our journalism needs your support. Please subscribe toda…