Walt Mancini, Pool, Associated Press
Christian Karl Gerhartsreiter, a German immigrant who masqueraded as a member of the famous Rockefeller family, walks into to a preliminary court hearing in Alhambra, Calif. Wednesday, Jan. 18, 2012. Gerhartsreiter a convicted kidnapper facing a charge of murdering the son of his former landlady a quarter century ago, when he lived in California under one of his many pseudonyms, is faced with the murder of John Sohus, 27, who disappeared from San Marino, Calif. in 1985.

ALHAMBRA, California — Evidence in the murder case against a German man who posed as an heir to the Rockefeller fortune includes a fractured skull and bones wrapped in a bag from a university in Wisconsin, where the defendant was married in 1981.

Los Angeles County prosecutors called forensic witnesses Wednesday to testify about the bones in a hearing to determine if Christian Gerhartsreiter will stand trial for murder.

Authorities say the bones have been matched to John Sohus, a computer engineer who disappeared in 1985. They were unearthed in 1994 in wealthy San Marino, where Gerhartsreiter allegedly lived under the name Chris Chichester.

Gerhartsreiter was previously convicted of kidnapping his own daughter in Boston, where he had lived as Clark Rockefeller.