Former NYC Mayor Ed Koch dies at 88

1944: This file photo shows Ed Koch during his service in the U.S. Army in France.  (AP)

March 1, 1973: In this file photo, a man interviews New York mayoral candidate, Rep. Edward Koch, in New York.  (AP)

Oct. 17, 1980: In this file photo, New York Mayor Ed Koch gestures as he escorts Republican presidential nominee Ronald Reagan into Gracie Mansion in New York.  (AP)

July 6, 1983: In this file photo, New York Mayor Ed Koch kisses singer-actress Diana Ross at the steps of City Hall in New York.  (AP)

Aug. 30. 2004: In this file photo, former New York Mayor Ed Koch speaks at the first day of the Republican National Convention in New York.  (AP)

March 23, 2010: Former New York Mayor Ed Koch speaks during a publicity event in New York. (AP)

May 16, 2012: In this file photo, former New York Mayor Ed Koch, right, talks to reporters as Assemblyman Rory Lancman watches in New York.  (AP)