Billy Dan Carroll, 53

Police have seized video tapes of court-appointed advocate molesting as many as 20 children. He is being charged with aggravated sexual assault of an 8-year-old girl under his care earlier this month.

Billy Dan Carroll, a 53-year-old entrepreneur and founder of a court-reporting firm, filmed himself having sex with several kids between the ages of 3 and 15, the Austin American Statesman reported.

"We don't know where it is going to end up, how many victims we may end up with," Austin police Sgt. Brian Loyd said. "There could be six. There could be 20. There is no telling."

Carroll told the girl's parents he wanted the 8-year-old and her sisters to spend the night with his family, but he did not reveal that his wife and daughters were away for the weekend. According to the child, he asked if she wanted to play a game. Then he blindfolded her and sexually assaulted her. The little girl immediately told her sisters who were in another room following the incident.

"He was thought of as a family friend," Loyd said.

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Police said Carroll also recorded himself having sex with two unconscious adult women. Investigators are attempting to identify the victims, and the Austin authorities are asking anyone with information about the crimes to contact local police.

Court-Appointed Special Advocates, or CASAs, often work with Child Protective Services and assist in mentoring youth. CASA executive director Laura Wolf said Carroll was suspended last week. He passed national and state background checks, an advocate screening process and was cleared with CPS. Carroll had volunteered since 2004, working with young children for four years before his arrest.

"We were completely shocked and really heartbroken about it," Wolf said. "This individual has glowing references from people who had known him for years."

Carroll's company released a statement with the following message:

"It goes without saying that those of us at Fredericks-Carroll are shocked and saddened by this news. Our company was certainly not aware of any of the allegations underlying Mr. Carroll's arrest, and we condemn any criminal behavior that may have occurred."

Police have spent several days sorting through all of the evidence. Authorities seized several incriminating videos, photographs and computers from Carroll's home May 21. His bail is set at $2 million.

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