Dr. Irving Sigal

Age: 35

Summary: leading molecular biologist and senior director of molecular biology at the Merck Sharp & Dohme Research Laboratories in Rahway, New Jersey and West Point, Pennsylvania who was an internationally recognized expert on recombinant DNA technology, whose work led to major insights into the function of an enzyme linked to the development of cancers, who also spawned a new field in pharmacology with his work on the structure and function of adrenergic receptors, which are involved in cardiopulmonary disease, who most recently spearheaded a major effort aimed at discovering a novel drug against the AIDS virus.

Cause of Death: Killed in the terrorist bombing of Pan Am Flight 103

Born: May 23, 1953

Died: December 21, 1988

Location: Lockerbie, Scotland