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WASHINGTON (CNN) -- The man accused of killing two Capitol Hill police officers in July suffers from a mental disease making him incapable of assisting in his own defense at a trial, according to a psychiatrist's report revealed in court on Friday.

At the request of federal prosecutors and court-appointed lawyers, Russell Eugene Weston Jr., a diagnosed paranoid schizophrenic, was evaluated by Dr. Sally Johnson, the Federal Bureau of Prisons psychiatrist who also evaluated convicted Unabomber Theodore Kaczynski.

In her report, Johnson says Weston is unable to understand the nature of the charges against him and she recommends he be committed for "an extended period of hospitalization and medication" in an effort to restore his competency.

Defense attorney A. J. Kramer said he was not surprised by the report, but he declined to say whether Weston would enter an insanity plea.

Weston, who appeared at the U.S. District Court hearing dressed in a dark blue prison jumpsuit, was asked if he was satisfied with his lawyers. "Yes, your honor," he told Judge Emmitt Sullivan, in a soft, but deep voice.

The psychiatric evaluation was presented as federal prosecutors seek Weston's medical records.

Government lawyers did not indicate if they would challenge the report's findings and attempt to put Weston on trial. But prosecutors asked Sullivan to release all of Weston's medical records for evaluation, an indication that a trial is possible.

Another hearing on the medical records issue was scheduled for January 8. Weston also still faces a competency hearing.

Weston, 41, who has a 20-year history of mental illness, is charged with murder and attempted murder in the July 24 shooting that killed Officer Jacob J. Chesnut and Special Agent John M. Gibson.

A female tourist was wounded in the shootings, which occurred beneath the dome of the U.S. Capitol.

Weston was shot several times by police after he stormed a security checkpoint inside the Capitol building. He has undergone several surgeries and remains in a wheelchair with casts on his right wrist and left leg and surgical pins lodged in his upper right arm.

"He's still in quite of bit of pain, but (his condition is) improving," said Kramer.

Weston, an Illinois native who last lived in Montana, is being held at a hospital unit of a jail in Washington.