People stand for prayers during a candle light vigil at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll left by an army psychiatrist who went on a shooting rampage at a U.S. military base in Texas rose to 13 on Friday, U.S. media reported. Suspected gunman Major Nidal Malik Hasan opened fire with two handguns at the Fort Hood Army post on Thursday, in one of the worst killing sprees ever reported on a U.S. military base, army officials said.

A U.S. Army soldier sits with her two children at a candle light vigil at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll left by an army psychiatrist who went on a shooting rampage at a U.S. military base in Texas rose to 13 on Friday, U.S. media reported. Suspected gunman Major Nidal Malik Hasan opened fire with two handguns at the Fort Hood Army post on Thursday, in one of the worst killing sprees ever reported on a U.S. military base, army officials said.

Tears stream down US Army Sgt Major Leroy Walker Jr.'s face during a candle light vigil at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll from an Army psychiatrist who opened fire at the Fort Hood Army post rose to 13 on Friday, and Army officials said the suspected shooter was hospitalized and on a ventilator.

Luit. Colonel Charles Keller, holds his son Michael, 8, as his wife Sylvie, wipes away a tear while holding her daughter Amber, 10, before the start of a candle light vigil at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll from an Army psychiatrist who opened fire at the Fort Hood Army post rose to 13 on Friday, and Army officials said the suspected shooter was hospitalized and on a ventilator.

U.S. soldiers attend a candle light vigil at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll left by an army psychiatrist who went on a shooting rampage at a U.S. military base in Texas rose to 13 on Friday, U.S. media reported. Suspected gunman Major Nidal Malik Hasan opened fire with two handguns at the Fort Hood Army post on Thursday, in one of the worst killing sprees ever reported on a U.S. military base, army officials said.

Owen Rabago, (L), wipes a tear away from his father, Specialist Sheldon Rabago's face, (R), as his mother Nancy wraps her arms around both of them during a candle light vigil at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll from an Army psychiatrist who opened fire at the Fort Hood Army post rose to 13 on Friday, and Army officials said the suspected shooter was hospitalized and on a ventilator.

United States soldiers light candles at Hood Stadium on the Fort Hood Army Post in Fort Hood, Texas November 6, 2009. The death toll from an Army psychiatrist who opened fire at the Fort Hood Army post rose to 13 on Friday, and Army officials said the suspected shooter was hospitalized and on a ventilator.