Dr. Irving S. Sigal
Summary: longtime research biologist at the international pharmaceutical company Merck & Co., Inc. who was considered as a top AIDS researcher and became instrumental in the early discovery of drug therapies to treat human immunodeficiency virus.
Cause of Death: Killed in Pan Am Flight 103 terrorist bombing
Born: May 23, 1953
Died: December 21, 1988
Location: Lockerbie, Scotland