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On July 16, 1981, Harry Chapin was driving in the left lane on the Long Island Expressway at about 65 mph (105 km/h) on the way to perform at a free concert scheduled for later that evening at Eisenhower Park in East Meadow, New York. Near exit 40 in Jericho, he put on his emergency flashers, presumably because of either a mechanical or medical problem. He then slowed to about 15 miles (24 km) per hour and veered into the center lane, nearly colliding with another car. He swerved left, then to the right again, ending up directly in the path of a tractor-trailer truck. The truck could not brake in time and rammed the rear of Chapin's blue 1975 Volkswagen Rabbit, rupturing the fuel tank as it climbed up and over the back of the car, which burst into flames. Dr. Minoru Araki, Nassau County's deputy chief medical examiner, said Chapin's aorta was lacerated by the tremendous impact and he died of massive hemorrhaging into his chest cavity. Araki said a report that Chapin may have suffered a heart attack at the wheel was erroneous. "He suffered a cardiac arrest as the result of his severe injuries, but the autopsy showed that his heart was in very good condition," Araki said.