Christian Karl Gerhartsreiter (born February 21, 1961) is a German man who moved to the United States as a teenager to study, and thereafter assumed many aliases. Using the false name Clark Rockefeller, he married a Harvard Business School graduate student named Sandra Boss. The couple had homes in Boston and New Hampshire, and lived a prosperous lifestyle solely on Boss's high income as a business consultant. Boss eventually determined her husband had lied to her extensively, and sought a divorce. After their estrangement, Gerhartsreiter kidnapped their daughter, Reigh Storrow Mills Boss, in July 2008 and was arrested six days later. Investigations determined that Gerhartsreiter had wildly embellished his background to give the impression that he was born into great wealth, as a member of the Rockefeller family. He was later convicted and imprisoned on the kidnapping charge, which is presently under appeal.
In March 2011 he was charged with a 1985 murder in Los Angeles County, California, where he had lived at that time.
Gerhartsreiter reportedly came to the United States as a West German foreign exchange student in 1979. Although his family stated that Christian Gerhartsreiter was born on February 21, 1961, he maintains that he was born on February 29, 1960. Gerhartsreiter also told Boston police that his mother is Ann Carter, an American child actress of the 1940s, which Carter has denied.