Worker at baby clinic used his own sperm
An American woman has discovered that the artificial insemination procedure she had done in 1991 was carried out, not with the sperm of her husband as she thought, but with that of a convicted criminal who worked at the clinic.
An investigation has been launched to discover if Thomas Lippert, who is believed to have deliberately substituted his own sperm, is also the genetic father of other children whose parents used the medical facility in Utah.
Lippert, a former law professor described by colleagues as "incredibly bright", died in 1999.
In 1975, he had been jailed for two years following a high-profile kidnapping case that became known as "The Love Experiment". He had abducted a 21-year-old female university student in Minnesota and put her in a dark room.
He subjected her to electric shocks, then showed her pictures of himself and gave her rewards in an effort to make her love him. Between 1988 and 1994 Lippert worked at Reproductive Medical Technologies, a fertility clinic, which had a contract with the University of Utah.
He was also a part-time employee of the university.
The mother whose child was fathered using his sperm discovered the truth after conducting a genealogy test for fun. Her daughter is now aged 21.
She told KUTV in Utah: "I felt my stomach just drop."
Further investigations revealed the genetic link to Lippert. The university said: "Since April 2013, the University of Utah has been investigating credible information regarding the possible mislabelling or tampering of a semen sample. We understand this information has been upsetting for the family and other clients." (© Daily Telegraph, London)