Rockefeller To Plead Insanity

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The man who calls himself Clark Rockefeller plans to use an insanity defense at his trial for allegedly kidnapping his 7-year-old daughter.

Rockefeller's lawyers filed notice of the defense in court Friday, three days after Rockefeller rejected a plea deal.

The notice does not specify what kind of mental illness Rockefeller will cite. It says only that he will rely on a defense of "lack of criminal responsibility" for his conduct because of a "mental disease or defect" at the time of the alleged crime.

Rockefeller's real name is Christian Karl Gerhartsreiter, a German national who moved to the United States in the late 1970s and used a string of fake identities.

Gerhartsreiter is accused of snatching his daughter during a supervised visit in Boston in July. They later were found in Baltimore.

This program aired on February 13, 2009. The audio for this program is not available.