Lawyers for US Army psychiatrist Major Nidal Malik Hasan, who is alleged to have shot 13 people dead at Fort Hood, Texas, say he will not get a fair trial on the base.
Army officials have been overseeing the care of Major Hasan, after he was shot by a civilian police officer following his alleged shooting rampage at the Fort Hood installation.
Hasan's lawyer, retired Colonel John Galligan, has said his client's condition in hospital is stable and he is aware charges will be laid.
The attorney declined to answer any questions about the shooting spree that left 13 people dead and dozens wounded or what may have motivated the attack.
But, speaking to CBS, he said he thought a fair trial would be difficult to achieve at Fort Hood, given the national media attention.
Galligan said. "Anytime you have a high-profile case, as this one is, concerns about a fair and impartial jury will be present in any defence counsel's mind."
More details have emerged about the suspect's alleged communication with a radical Muslim cleric, who has praised Hasan as a "hero."
It is believed US intelligence officers intercepted emails between Hasan and the Muslim imam Anwar al-Awlaki, who is known for radical anti-American teachings.
The cleric now lives in Yemen but once taught at a mosque in Virginia that Hasan attended.
Al-Awlaki is known to be a supporter of violent Islamists.
Since the shooting, Awlaki's English-language Website has praised Hasan as a "hero" and a "man of conscience."
A memorial service for the 13 victims of the shooting at Fort Hood took place Tuesday with the families of those killed attending and President Barack Obama addressing the gathering.
Thousands of US Army soldiers wearing black berets stood in the crowd as the families entered the open air location on the base.
Obama said the murders on the base could not be justified by religious beliefs.
He said: “It may be hard to comprehend the twisted logic that led to this tragedy. But this much we do know: No faith justifies these murderous and craven acts. No just and loving God looks upon them with favour. And for what he has done, we know that the killer will be met with justice in this world, and the next.”
