Boston marathon bombing suspect Tamerlan Tsarnaev (R) and Lamar Fenner (L) stand during a decision in the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev waits for a decision in the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev (L) fights Lamar Fenner (R) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev (R) fights Lamar Fenner (L) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev(L) fights Lamar Fenner (R) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev (L) fights Lamar Fenner (R) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev (R) fights Lamar Fenner (L) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev (L) fights Lamar Fenner (R) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Boston bombing suspect Tamerlan Tsarnaev (L) fights Lamar Fenner (R) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

Tamerlan Tsarnaev (L) fights Lamar Fenner (R) during the 201-pound division boxing match during the 2009 Golden Gloves National Tournament of Champions May 4, 2009 in Salt Lake City, Utah.

Tsarnaev, 26, was killed during a car chase and shootout with police on April 19. A manhunt continues for his brother and the second suspect in the bombings, 19-year-old Dzhokhar A. Tsarnaev.

In this Feb. 17, 2010, photo, Tamerlan Tsarnaev, left, accepts the trophy for winning the 2010 New England Golden Gloves Championship from Dr. Joseph Downes, right, in Lowell, Mass. Tsarnaev, 26, who had been known to the FBI as Suspect No. 1 in the Boston Marathon bombings and was seen in surveillance footage in a black baseball cap, was killed overnight on Friday, April 19, 2013, officials said.