Forensics expert Howard Ryan testifies during the capital murder trial of former Marine Cpl. Eddie Ray Routh in Stephenville, Texas February 24, 2015. A Texas jury could begin deliberations as early as Tuesday in the trial of Routh, who is charged with murdering Chris Kyle, the former U.S. Navy SEAL whose autobiography was turned into the blockbuster movie "American Sniper" and Kyle's friend Chad Littlefield in 2013. REUTERS/Michael Ainsworth/Pool (UNITED STATES - Tags: CRIME LAW MILITARY) 

U.S. goalie Jimmy Howard (L) makes a save on teammate Ryan Callahan during a men's ice hockey team practice at the 2014 Sochi Winter Olympics February 18, 2014. REUTERS/Jim Young (RUSSIA - Tags: SPORT OLYMPICS SPORT ICE HOCKEY)

The U.S. men's hockey team head coach Dan Bylsma (2nd L) talks to goaltenders Ryan Miller (L), Jimmy Howard (2nd R) and Jonathan Quick during a team USA practice at the 2014 Sochi Winter Olympics February 11, 2014. REUTERS/Brian Snyder (RUSSIA - Tags: SPORT OLYMPICS ICE HOCKEY) 

Detroit Red Wings defenseman Brendan Smith (2) clears the puck away from in front of Detroit Red Wings goalie Jimmy Howard (35) as Anaheim Ducks right wing Bobby Ryan (9) skates in during Game 6 of their NHL Western Conference quarterfinals hockey game in Detroit, Michigan May 10, 2013. REUTERS/Rebecca Cook (UNITED STATES - Tags: SPORT ICE HOCKEY) 

Anaheim Ducks right wing Bobby Ryan (9) is stopped by Detroit Red Wings goalie Jimmy Howard (35) in the 3rd period during Game 5 of their NHL Western Conference quarterfinal hockey playoff in Anaheim, California, May 8, 2013. REUTERS/Mike Blake (UNITED STATES - Tags: SPORT ICE HOCKEY) 

Detroit Red Wings goalie Jimmy Howard (35) makes a save on Anaheim Ducks center Ryan Getzlaf (15) in the 2nd period during Game 5 of their NHL Western Conference quarterfinal hockey playoff in Anaheim, California, May 8, 2013. REUTERS/Mike Blake (UNITED STATES - Tags: SPORT ICE HOCKEY) 

Detroit Red Wings goalie Jimmy Howard (35) looks back as Anaheim Ducks center Ryan Getzlaf 's shot goes in for a 2nd period goal during Game 5 of their NHL Western Conference quarterfinal hockey playoff in Anaheim, California, May 8, 2013. REUTERS/Mike Blake (UNITED STATES - Tags: SPORT ICE HOCKEY) 

Anaheim Ducks center Ryan Getzlaf (L) celebrates his 2nd period goal against Detroit Red Wings goalie Jimmy Howard (35) with teammates Matt Beleskey (39) and Corey Perry (10) during Game 5 of their NHL Western Conference quarterfinal hockey playoff in Anaheim, California, May 8, 2013. REUTERS/Mike Blake (UNITED STATES - Tags: SPORT ICE HOCKEY) 

Anaheim Ducks leftwing Matt Beleskey (R) celebrates his goal against Detroit Red Wings goalie Jimmy Howard (C) as Ducks rightwing Bobby Ryan watches during the third period of Game 3 of their NHL Western Conference quarter finals hockey playoff game in Detroit, Michigan May 4, 2013. REUTERS/ Rebecca Cook (UNITED STATES - Tags: SPORT ICE HOCKEY) 

Los Angeles Clippers center Ryan Hollins (L) lays out on the floor after a foul is called on Los Angeles Lakers center Dwight Howard (12) for running over Hollins during the second half of their NBA basketball game in Los Angeles, California April 7, 2013. REUTERS/Alex Gallardo (UNITED STATES - Tags: SPORT BASKETBALL) 

Philadelphia Phillies first baseman Ryan Howard bobbles a ground ball from a Kansas City Royals batter during the first inning of the Phillies home opener in their MLB Interleague baseball game in Philadelphia, Pennsylvania April 5, 2013. REUTERS/Tim Shaffer (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard (R) catches a pop-up as the Toronto Blue Jays Jose Bautista (L) runs to first base during the sixth inning of their interleague pre-season MLB baseball game in Philadelphia, Pennsylvania, March 29, 2013. REUTERS/Tim Shaffer (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies infielders Ryan Howard (R) and Jimmy Rollins (L) watch batting practice during a workout before a MLB spring training baseball game with the Baltimore Orioles in Sarasota, Florida, March 23, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard adjusts his batting stance during the third inning of a MLB spring training baseball game against the Baltimore Orioles in Sarasota, Florida, March 23, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Domonic Brown (R) greets Ryan Howard (L) at the plate after Howard's solo home run off Baltimore Orioles starter Chen Wei-Yin during the first inning of a MLB spring training baseball game in Sarasota, Florida, March 23, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard watches his solo home run off Baltimore Orioles starter Chen Wei-Yin during the first inning of a MLB spring training baseball game in Sarasota, Florida, March 23, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies infielders Ryan Howard (R) and Jimmy Rollins (L) watch batting practice during a workout before a MLB spring training baseball game with the Baltimore Orioles in Sarasota, Florida, March 23, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

New York Yankees' Brett Gardner (L) reaches first base on a bunt single as Philadelphia Phillies' Ryan Howard (R) reaches for the throw from pitcher Kyle Kendrick during the fourth inning of a MLB spring training baseball game in Clearwater, Florida, March 19, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Chase Utley (L) and Delmon Young (C) watch Ryan Howard (R) take batting practice during a workout before a MLB spring training baseball game with the New York Yankees in Clearwater, Florida, March 19, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Domonic Brown (9) and Ryan Howard (6) score on a two-run single hit by Laynce Nix during the fifth inning of a MLB spring training game against the Washington Nationals in Clearwater, Florida, March 6, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard drives in a run on a ground out to first base during the third inning of a MLB spring training game against the Washington Nationals in Clearwater, Florida, March 6, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard enjoys a laugh during a workout before a MLB spring training exhibition game with the Dominican Republic national team in Clearwater, Florida, March 5, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies Ryan Howard is congratulated in the dugout after he hit a home run in the first inning of their MLB baseball spring training game against the Toronto Blue Jays in Dunedin, Florida March 2, 2013. REUTERS/Fred Thornhill (UNITED STATES - Tags: SPORT BASEBALL) 

New York Yankees catcher Bobby Wilson (L) looks on as Philadelphia Phillies' Ryan Howard (R) singles off New York pitcher Joba Chamberlain during the fourth inning of a MLB spring training game in Clearwater, Florida, February 26, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies infielder Ryan Howard throws out a baserunner during a workout at the team's MLB spring training in Clearwater, Florida, February 19, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard (L) and Ben Revere (2) stretch during a workout at the team's MLB spring training in Clearwater, Florida, February 19, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Pete Orr (L) and Ryan Howard (R) walk from the clubhouse to the practice field during a workout at the team's MLB spring training in Clearwater, Florida, February 19, 2013. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Prince Harry watches the Canadian women's eights win the silver medal in rowing during his visit to Canada House at the 2012 Summer Olympics in London August 2, 2012. Sitting with Prince Harry are Canadian silver medal rowers Malcolm Howard, center, Jeremiah Brown and his son, Ethan. REUTERS/Ryan Remiorz/Pool (BRITAIN - Tags: SPORT OLYMPICS PROFILE ROYALS) 

Prince Harry (R) watches the Canadian women's eights win the silver medal in rowing with Canadian silver medal rowers Malcolm Howard, (centre) Jeremiah Brown and his son, Ethan during his visit to Canada House at the 2012 Summer Olympics in London August 2, 2012. REUTERS/Ryan Remiorz/Pool (BRITAIN - Tags: SPORT OLYMPICS PROFILE ROYALS) 

Prince Harry poses for a souvenir photo with Canadian silver medalist rower Malcom Howard during his visit to Canada House at the 2012 Summer Olympics in London August 2, 2012. REUTERS/Ryan Remiorz/Pool (BRITAIN - Tags: SPORT OLYMPICS PROFILE ROYALS) 

Prince Harry (R) looks at Canadian rower Malcom Howard's silver medal for the men's eights during his visit to Canada House at the 2012 Summer Olympics in London August 2, 2012. REUTERS/Ryan Remiorz/Pool (BRITAIN - Tags: SPORT OLYMPICS PROFILE ROYALS) 

Philadelphia Phillies closing pitcher Jonathan Papelbon (L), catcher Carlos Ruiz (R) and Ryan Howard celebrate their win over the Los Angeles Dodgers in their MLB National League baseball game in Los Angeles, California, July 16, 2012. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard (R) reacts after striking out swinging as Los Angeles Dodgers catcher A.J. Ellis looks on in the sixth inning of their MLB National League baseball game in Los Angeles, California, July 16, 2012. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard celebrates as he runs the bases after hitting a home run against the Los Angeles Dodgers in the fourth inning of their MLB National League baseball game in Los Angeles, California, July 16, 2012. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies Ryan Howard celebrates a single against the Atlanta Braves with first base coach Sam Perlozzo (2) during the seventh inning of their National League MLB baseball game in Philadelphia, Pennsylvania, July 6, 2012. This is Howard's first game since rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer(UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies Ryan Howard replaces his cap before the Phillies versus the Atlanta Braves National League MLB baseball game in Philadelphia, Pennsylvania, July 6, 2012. Howard returns to the lineup after rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer(UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies Ryan Howard connects for a double against the Atlanta Braves during the second inning of their National League MLB baseball game in Philadelphia, Pennsylvania, July 6, 2012.This is Howard's first plate appearance since rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard walks from the field after batting practice before their National League MLB baseball game against the Atlanta Braves in Philadelphia, Pennsylvania, July 6, 2012. Howard returns to the lineup after rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard (R) walks near teammate Chase Utley during batting practice before they play against the Atlanta Braves in their National League MLB baseball game in Philadelphia, Pennsylvania, July 6, 2012. Howard returns to the lineup after rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies Ryan Howard flips his bat during batting practice before playing against the Atlanta Braves in their National League MLB baseball game in Philadelphia, Pennsylvania, July 6, 2012. Howard returns to the lineup after rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies' Ryan Howard (L) chats with teammate Jimmy Rollins during batting practice before they play against the Atlanta Braves in their National League MLB baseball game in Philadelphia, Pennsylvania, July 6, 2012. Howard returns to the lineup after rupturing his left Achilles tendon during the final play of the 2011 National League Division Series against the St Louis Cardinals. REUTERS/Tim Shaffer(UNITED STATES - Tags: SPORT BASEBALL) 

Bobby Ryan (R) reacts and goalkeeper Jimmy Howard of the U.S. lies on ice after he fails to save a puck as Slovakia's Mario Bliznak (front) and Milan Bartovic celebrate scoring during their 2012 IIHF men's ice hockey World Championship game in Helsinki May 7, 2012. REUTERS/Grigory Dukor (FINLAND - Tags: SPORT ICE HOCKEY)

Philadelphia Phillies infielder Ryan Howard, wearing a protective boot as he recovers from an infection near his healing Achilles tendon, talks on the phone outside the clubhouse before a spring training baseball game against the Detroit Tigers in Clearwater, Florida, March 19, 2012. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies infielder Ryan Howard, out of action while recovering from a ruptured Achilles tendon, watches a spring training baseball game against the Toronto Blue Jays in Clearwater, Florida, March 17, 2012. REUTERS/Steve Nesius (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard (L) stands with teammate Chase Utley (R) following a light workout at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard takes a break while working out at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard (C) speaks with teammates Chase Utley (L) and Jim Thome (R) after arriving at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard fields balls at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard (C) greets a group of men as he arrives at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard smiles toward teammates working out nearby as he arrives at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Philadelphia Phillies first baseman Ryan Howard smiles toward teammates working out nearby as he arrives at the Phillies' Major League Baseball spring training facility in Clearwater, Florida February 20, 2012. REUTERS/Brian Blanco (UNITED STATES - Tags: SPORT BASEBALL) 

Orlando Magic's Dwight Howard (L) guards Boston Celtics' Kevin Garnett (C) along with Magic teammate Ryan Anderson in the second half of their NBA basketball game in Boston, Massachusetts January 23, 2012. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: SPORT BASKETBALL) 

Charlotte Bobcats power forward Boris Diaw of France (32) works to drive between Orlando Magic center Dwight Howard (12) shooting guard Quentin Richardson (back R) and power forward Ryan Anderson (front R) in their NBA basketball game in Charlotte, North Carolina December 30, 2011. REUTERS/Chris Keane (UNITED STATES - Tags: SPORT BASKETBALL) 

Charlotte Bobcats power forward Boris Diaw of France (C) works to drive between Orlando Magic center Dwight Howard (R) and power forward Ryan Anderson (L) in their NBA basketball game in Charlotte, North Carolina December 30, 2011. REUTERS/Chris Keane (UNITED STATES - Tags: SPORT BASKETBALL) 

Edmonton Oilers' Ryan Jones (C) scores on Detroit Red Wings goalie Jimmy Howard (R) while being checked by Jakub Kindl (L) during the second period of their NHL hockey game in Edmonton December 19, 2011. REUTERS/Dan Riedlhuber (CANADA - Tags: SPORT ICE HOCKEY) 

Detroit Red Wings' goalie Jimmy Howard (R) stops a shot from Edmonton Oilers' Ryan Jones during the first period of their NHL hockey game in Edmonton December 19, 2011. REUTERS/Dan Riedlhuber (CANADA - Tags: SPORT ICE HOCKEY) 

Green Bay Packers kicker Mason Crosby (C) celebrates with his teammates Ryan Taylor (R) and Howard Green (L) after making the game winning field goal as time expired in the fourth quarter during their NFL football game against the New York Giants in East Rutherford, New Jersey, December 4, 2011. REUTERS/Mike Segar (UNITED STATES - Tags: SPORT FOOTBALL) 

Penn State wide receiver Stephen Obeng-Agyapong (7) runs by Ohio State defenders Travis Howard (7) and Ryan Shazier (10) during the second quarter of their NCAA football game in Columbus, Ohio, November 19, 2011. REUTERS/Matt Sullivan (UNITED STATES - Tags: SPORT FOOTBALL) 

Detroit Red Wings goalie Jimmy Howard defends his net from Edmonton Oilers leftwing Ryan Smyth during the first period of their NHL hockey game in Detroit, Michigan November 11, 2011. REUTERS/Rebecca Cook (UNITED STATES - Tags: SPORT ICE HOCKEY) 

A combination photo shows Philadelphia Phillies' first baseman Ryan Howard falling down while running to first base during the ninth inning of Game 5 of their MLB National League Divisional Series baseball playoff game against St. Louis Cardinals in Philadelphia October 7, 2011. REUTERS/Ray Stubblebine (UNITED STATES - Tags: SPORT BASEBALL)