1. Sept. 11 terrorist attacks: In this Sept. 11, 2001, file photo, the twin towers of the World Trade Center burn behind the Empire State Building in New York. | AP file

2. Hurricane Katrina: In this Aug. 31, 2005 picture, New Orleans Police and volunteers use boats to rescue residents from a flooded neighborhood on the east side of New Orleans. Hurricane Katrina left much of the city under water. | AP file

3. The O.J. Simpson verdict: This Oct. 3, 1995 file photo shows O.J. Simpson, center, with defense attorneys F. Lee Bailey, left, and Johnnie Cochran after Simpson was found not guilty of murdering his ex-wife Nicole Brown Simpson and her friend Ron Goldm

4. The Challenger space shuttle explodes: In this Jan. 28, 1986 file photo, the space shuttle Challenger explodes shortly after lifting off from the Kennedy Space Center in Cape Canaveral, Fla. | AP file

5. Death of Osama bin Laden: People in New York's Times Square react to the news of the death of Osama Bin Laden (inset) early Monday morning May 2, 2011. | AP, Getty Images files

6. The O.J. Simpson White Bronco chase: A white Ford Bronco driven by Al Cowlings, carrying O.J. Simpson, heads northbound on the I-5 in Anaheim, Calif., June 17, 1994. | AP file

7. The Japanese earthquake and tsunami: In this March 11, 2011 file photo, earthquake-triggered tsumanis sweep over the shores along Iwanuma. The magnitude 8.9 earthquake slammed Japan's eastern coast, unleashing a 13-foot tsunami that swept boats, cars, buildings and tons of debris miles inland. | AP file

8. Columbine school shooting: An unidentified woman stands among 15 crosses posted on a hill above Columbine High School in Littleton, Colo. Wednesday, April 28, 1999 in remembrance of the 15 people who died during a school shooting on April 20. | AP file

9. BP oil spill in Gulf of Mexico: This April 21, 2010, file photo show the Deepwater Horizon oil rig burning after an explosion in the Gulf of Mexico, off the southeast tip of Louisiana. | AP

10. Princess Diana’s funeral: This Sept. 6, 1997 file photo shows the casket containing the body of Diana, Princess of Wales, as it is carried into Westminster Abbey by soldiers of the Welsh Guards, during funeral ceremonies in London. | AP file

11. Death of Whitney Houston: A T-shirt, flowers and notes are left at a makeshift memorial for Whitney Houston outside the Beverly Hills Hilton Hotel in Beverly Hills, Calif., where she died on Feb. 11, 2012. | AP file

12. Capture and execution of Saddam Hussein: A man watches an Arab television newscast on the execution of former Iraq president Saddam Hussein on Dec. 30, 2006, at Mataam Al Mataam restaurant in Chicago. | John J. Kim~Sun-Times file

13. Barack Obama Election Night speech: President-elect Barack Obama and the first family waves to supporters during the election night rally on Nov. 4, 2008 in Grant Park. | John J. Kim~Sun-Times

14. Wedding of Prince William and Kate Middleton: This April 29, 2011 file photo shows Prince William and Catherine, the Duchess of Cambridge, walking down the aisle at Westminster Abbey following their marriage in London. | AP file

15. John F. Kennedy assassination: This Nov. 22, 1963 file photo shows President John F. Kennedy riding in motorcade with first lady Jacqueline Kenndy before he was shot in Dallas, Texas. | AP file

16. Oklahoma City bombing: This April 19, 1995 file photo shows rescue workers standing in front of the Alfred P. Murrah Federal Building following an explosion in downtown Oklahoma City. | AP file

17. Bush/Gore disputed election: Republican presidential candidate Texas Gov. George W. Bush, left, and Democratic presidential candidate Vice President Al Gore gesture during their debate at Washington University Tuesday, Oct. 17, 2000, in St. Louis. | A

18. Los Angeles riots, Rodney King beating: Rodney King shows his bruises in this March 6, 1991, file photo taken in Los Angeles. On April 29, 1992, four white police officers were declared innocent in his beating, and Los Angeles erupted in the deadliest

19. Casey Anthony murder trial verdict: Casey Anthony holds hands with herattorney, Jose Baez, as they listen to the jury's verdict, finding her not guiity of murdering daughter Caylee at the Orange County Courthouse in Orlando, Fla. | AP file

JOHN F KENNEDY FUNERAL