http://www.latimes.com/wireless/avantgo/la-na-jonbenet18aug18,0,7672574.story
His second marriage was to Lara Marie Karr in 1989.
She was 16.
John Karr was "very controlling of me," Lara Karr said years later in their divorce papers
She was pregnant when they married. Karr, eight years older, told her it was the best way to get married without parental permission, she said, then later pushed her to cut all ties with family members. The couple eventually had three boys.
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So she was pregnant and sixteen when they married in 1989, the twins were stillborn on Sept 1, 1989.
More from link... read what the DA told her.
http://www.latimes.com/wireless/avantgo/la-na-jonbenet18aug18,0,7672574.story
Karr won release from jail Oct. 5, 2001, on a slate of conditions, including prohibitions on contacting his one named victim, using computers or the Internet, and visiting parks, theaters, beaches and other spots frequented by children.
Two days later, his wife was told by a neighbor that Karr had asked for her number, and wanted to see his boys and collect his belongings and car. Lara Karr got a court-ordered restraining order and no-visitation judgment, cutting off all ties between Karr and his sons.
"I'm concerned for the well being of my sons," Lara Karr said in court papers, noting that one district attorney official told her that her husband's acts were so egregious that he should be considered "a threat to all children."
In court papers, Lara Karr recalled that he had prior difficulties during his tenure as a substitute teacher while working in the South. She said John Karr had been told by a school in 1997 or 1998 that he wouldn't be asked to come back as a substitute because "he had a tendency to be too affectionate with the children."
John Karr's trial was set for January 2002, but he failed to report as required to authorities in December 2001, and a warrant was issued for his arrest.