The Nation - News from April 15, 1986

Two top executives of the Millipore Corp. were among four men who died when the company’s helicopter collided with a small plane at 2,000 feet over Holliston, Mass., authorities said. The two men aboard the plane escaped with minor injuries. The helicopter dead included John Mulvany, 47, president and chief executive of the high-technology company, and Adrian Reti, 48, vice president.