Notable Deaths of 2013

Sen. Frank Lautenberg (D-NJ) died Monday, June 3, of a viral pneumonia. He was the longest-serving senator in New Jersey's history. (AP Photo/Manuel Balce Ceneta)

Republican mega donor Bob Perry died April 14. In the last election he spent $23.5 million supporting Republican and conservative super PACs. He was 80 years old. (www.bobperry.us)

Former British Prime Minister Margaret Thatcher died Monday, April 8, due to a stroke. She was 87 years old. (AP Photo/Lefteris Pitarakis)

Roger Ebert, long-time and much loved Chicago film critic died at the age of 70 on April 4. He reviewed films for the Chicago Sun Times for 46 years, in a career that spanned columns, books, and television. He died shortly after discovering a recurrence of cancer. (AP Photo/Carolyn Kaster)

Venezuelan President Hugo Chavez died March 5, due to a heart attack. He also had cancer. (AP Photo/Matt Dunham)

Barney, former White House Scottish Terrier  during President George W. Bush's administration, died after suffering from cancer, the former president announced in a statement Friday, Feb. 1, 2013. He was 12. (AP Photo/J. Scott Applewhite)

Former New York Mayor Ed Koch died on February 1, 2013, due to a heart failure. (AP Photo/Bookstaver)