On the night of 31 October 1992, Schneeberger
sedated his 23-year-old patient, Candice, and raped her. While
Versed — the
anesthetic he used — has strong
amnesiac effect, Candice was still able to remember the rape. She reported the crime to the police.
Schneeberger's blood sample was, however, found not to match the samples of the alleged rapist's
semen, thus clearing him of suspicion. In 1993, at the victim's request, the test was repeated, but the result was negative, as well. In 1994, the case was closed.
Candice, still convinced that her reminiscences were true, hired Larry O'Brien, a private detective, to investigate the case. He broke into Schneeberger's car and obtained another DNA sample, which, this time, matched the semen on victim's panties and pants. As a result, a third official test was organized. The obtained blood sample was, however, found to be too small and of too poor quality to be useful for analysis.
In 1997, Lisa Schneeberger found out that her husband had repeatedly drugged and raped her 15-year-old daughter from her first marriage. She reported him to the police, which ordered a fourth DNA test. This time, multiple samples were taken:
blood, mouth
swab, and
hair follicle. All three matched the rapist's semen.
During his 1999 trial, Schneeberger revealed the method he used to foil the DNA tests. He implanted a 15 cm
Penrose drain filled with another man's blood and
anticoagulants in his arm. During tests, he tricked the laboratory technician to obtain blood sample from the place the tube was planted.
He was found guilty of
sexual assault, of administering a noxious substance, and of
obstruction of justice, and received a six-year
prison sentence.
The College of Physicians and Surgeons of Saskatchewan stripped Schneeberger of his
medical license and his wife
divorced him.
In 2003, Schneeberger was released on
parole, after serving four years in prison. He was stripped of his Canadian citizenship on the basis of not mentioning the police investigation against him in his citizenship application,
[1] and
deported to South Africa in 2004. He moved to
Durban to live with his mother.