assassinated in his law offices at Rockefeller Center by Dennis Sweeney, a deranged ex-associate. April 1–11: Second New York City Transit strike lasts 11 days. August 11–14: The 1980 Democratic National Convention was held at Madison Square Garden in Midtown Manhattan. September 25: The Grand Hyatt Hotel, on the site of the former Commodore Hotel near Grand Central Terminal, is opened, representing the first completed real estate project of Donald Trump. December 3: Staten Island Congressman John Murphy was convicted of bribery in the Abscam bribery scam which convicted seven Congressmen. December 8: Ex-Beatle John Lennon is murdered in front of his home in the Dakota. December: Transit Authority grounded its fleet of Grumman Flxible buses due to cracks in their A-frames. TA rents 150 old buses from Washington Metro. ABC No Rio social centre founded. The Wooster Group (theatre troupe) active. Non-Hispanic white population totals 3,668,945, down over 3 million from 1940 and representing only 51.9% of total population. Sister city relationship established with Beijing, China. 1981 May 6: Staten Island Ferry American Legion II crashes into a Norwegian freighter during the AM rush hour; 71 passengers injured. July 3: First article about "rare cancer seen in homosexuals" (AIDS) appears in the New York Times. AIDS is reported from here, with the city as #1 in descending order of U.S. cases of this disease (San Francisco and Los Angeles, later the first city where symptoms of it were reported to the CDC in June of this year. Run–D.M.C., Sonic Youth, and Beastie Boys musical groups formed. Helmsley Palace Hotel in business. 1982 January 1: Ed Koch is sworn into his second term as the city's 105th mayor. March 20: Frances Schreuder, ~nee Bradshaw, is arrested in her Manhattan townhouse at 10 Gracie Square for 1978's Franklin Bradshaw murder of her multi-millionaire father that she forced her younger then-17 years old, son, Marc, into committing out of fears of her disineritence from Franklin's will. June 22: Willie Turks, an African American 34-year-old MTA worker, is set upon and killed by a white mob in the Gravesend section of Brooklyn. October 7: Cats premieres on Broadway and subsequently holds the record for longest running Broadway show from 1997 to 2006. Institute for Puerto Rican Policy headquartered in New York City. Intrepid Sea, Air & Space Museum opens. Late Night with David Letterman television programme begins broadcasting. Sister city relationships established with