The man accused of snatching Jaycee Lee Dugard and keeping her imprisoned for 18 years was charged as early as 1972 over the rape of a child, but saw the case against him dropped, police have said.
Phillip Garrido (58) and his wife Nancy Garrido (55) were last week charged with 29 counts relating to the abduction of Ms Dugard from outside her Californian home in 1991 when she was just 11 years old.
A conviction against Mr Garrido dating to the rape of a woman in 1976 was already known, but authorities yesterday revealed that four years prior to that attack he was accused of drugging and raping a 14-year-old girl.
Police added that they expect there to be other victims who have yet to come forward.
Phillip and Nancy Garrido have pleaded not guilty to kidnap, rape and imprisonment charges related to Dugard's 1991 abduction.
Police say Garrido fathered Dugard's two daughters and lived with them in a backyard encampment of tents and sheds.
The family's location has been a closely-guarded secret since the 29-year-old woman reappeared last week. She was 11 when she was allegedly kidnapped.
Ms Dugard said the family has been spending time “in a secluded place”, reconnecting and getting to know each other. It also emerged how Nancy Garrido watched over kidnap victim Jaycee for years while she cared for her elderly, bedridden mother-in-law at the home she shared with her husband.
When Phillip Garrido went to prison for six weeks on a parole violation, his wife, a former nursing assistant, watched Jaycee at the home in Antioch, California, authorities said.
The emerging details paint a conflicting portrait of the 54-year-old woman charged with her husband over the kidnapping and rape of Jaycee.
Jaycee's stepfather Carl Probyn said Nancy Garrido fitted the description “dead-on” of the woman who pulled the then 11-year-old into a car.
It was unclear if Nancy Garrido was coerced into aiding her husband. But such a claim could be undermined by her silence about Jaycee's captivity while her husband was held at a jail for six weeks in 1993 on a parole violation, said criminal defence lawyer Michael Cardoza.