FORT MEADE, Md. -- Bradley Manning, the Army private who sent hundreds of thousands of secret U.S. government documents to WikiLeaks, was found not guilty on Tuesday of the most serious charge against him -- aiding the enemy -- but guilty of several other charges at a military trial in Fort Meade, Md.
Conviction on aiding the enemy carried a possible sentence of life in prison without parole.
Col. Denise Lind, the military judge in the case, made the ruling. Manning had requested that a judge, not a jury, determine the verdict against him.
In his closing argument last week, military prosecutor Maj. Ashden Fein, told the court Manning was a traitor who joined the Army to steal government documents, turn them over to the anti-secrecy organization and enjoy adulation as a whistle blower.
Manning's lawyer, David Coombs, portrayed him as a soldier troubled by what he saw while deployed to Iraq and struggling as a gay man to serve before the repeal of Don't Ask, Don't Tell, the policy that resulted in more than 14,000 gay troops being discharged.
Manning, 25, had faced 21 charges, including the most serious aiding the enemy, which carries a possible sentence of up to life in prison. Manning has acknowledged giving WikiLeaks some 700,000 battlefield reports, diplomatic cables and videos. But he says he didn't believe the information would harm troops in Afghanistan and Iraq or threaten national security.
The prosecution argued that Manning knew a- Qaeda terrorists could benefit from the leaks. Some of the information turned up in the search of Osama bin Laden's compound in Pakistan, they said.
Manning pleaded guilty in February to charges that he had misused classified information. Those charges carry a maximum term of 20 years in prison.
Manning was a low-level intelligence analyst, working at a forward operating base in Iraq when he gained access to the files. He used his computer savvy to gain access to sensitive government documents and communications.
The material he released included footage of a U.S. Army helicopter attack in Iraq in 2007 that killed at least nine men, including a Reuters journalist. Other documents revealed tepid U.S. support for the government in Tunisia. Manning's supporters say that helped bring about the revolution there that sparked the Arab Spring movement.
The verdict and sentence will be reviewed by the commander of the Military District of Washington. A hearing on his sentence is set to begin Wednesday.
Manning has been held in military jails since his arrest in 2010.