NOVATO, Calif. -- The Sunday school teacher accused of killing 13-year-old Jennifer Moore told police he killed the girl to prevent her from identifying him as the man who raped her in a church library, an affidavit filed Tuesday showed.
An affidavit filed in Marin County Municipal Court by Novato detective David Jeffries said that suspect Scott Martin Williams had first said he did not know why he killed the teenager, but later admitted he wanted to silence her about the sexual attack, the document said.
'Williams stated that she (Jennifer) knew Williams had raped her and that was the reason he killed her,' Jeffries said in the affidavit.
The girl disappeared April 13 after she left home to buy an ice cream cone and visit a friend. A mammoth search was launched throughout the Bay Area before her body was found four days later next to a road west of Novato. She had been strangled.
Items found near her nude body included some discarded books from the Bethel Baptist Church in Novato, leading investigators to the church and Williams.
The bearded Williams, 29, was the manager of a self-service gas station and minimart. He was also a Bible-quoting Sunday school teacher, deacon and volunteer groundskeeper for the Baptist church. He was arrested last Wednesday night and confessed to the crime after failing a lie detector test, FBI agents said.
According to the affidavit, Williams, who was doing yard work around the building, told investigators the girl wandered into the church. He said he tried to kiss her, but she resisted. He said he then forced the girl into the church library, tied her up, sexually assaulted her, untied her, strangled her and hit her with a baseball bat, according to the affidavit.
