Meir David HaKohen Kahane, 58, was shot dead on the evening of November 5, 1990, in a second-floor lecture hall at the New York Marriott East Side in Manhattan. Kahane had just delivered a speech and was answering questions when a man disguised as an Orthodox Jew approached him and, shortly after 9:00 p.m., shot him in the neck at close range with a .357-caliber pistol. Kahane died shortly thereafter.

The shooter fled but was wounded and captured after a struggle on Lexington Avenue when a U.S. Postal Inspection Service officer, Carlos Acosta, was shot in the chest and returned fire, hitting the suspect in the chin. The suspect was identified as El Sayyid Nosair, an Egyptian-born American citizen. Nosair was tried in 1991; jurors acquitted him of murder and attempted murder in December 1991 but convicted him on assault and weapons charges, and the judge sentenced him to 7 to 22 years.

What details about the events that night or witnesses at the hotel could help clarify who fired the fatal shot?