Murray, 59, has been in jail since November when he was found guilty and lawyer Valerie Wass, who is handling Murray's appeal, says he was shocked to see his condition in the jail, reported CNN online.
"He looked horrible. I've never seen him like that... I'm shocked. He told me he feels like a POW (prisoner of war). He told me last Tuesday 'I may not make it out of here alive. This is a very dangerous place. I'm in here dying. The system is intent on killing me'," Wass said.
Wass said she believed Murray would be better off in a state prison, where he would be able to get exercise and fresh air regularly.
"He's only seen the sunshine once in the past four weeks, even though prisoners in the high-security 'F Block' are supposed to be taken to the jail roof each Monday afternoon," she said.
Wass, who is working without pay, is still preparing the appeal of Murray's conviction and said he passes his time each day helping other inmates improve their vocabulary with a "word of the day" game that he designed.