A confidential police source spent almost $2,000 during more than a dozen visits to alleged prostitutes last year in hopes of arresting their bosses.
According to warrants unsealed last week, the source visited Advantage Day Spa and Body Works 13 times, spending an average of $150 each visit.
The source is not named in the warrants.
The warrants were requested in October as part of an investigation into William “Randy” Knox, who was later indicted on charges of using interstate commerce to promote prostitution, inducement to travel for illegal sexual conduct, money laundering conspiracy and money laundering.
Also indicted were Tammy Schuck and Christopher Tierney of Omaha and Tabatha Ashburn of Junction City, Kan. They are accused of operating the prostitution ring disguised as spas at several locations in Omaha.
The warrants allowed the FBI, Omaha Police Department and other agencies to have access to the spas and to Knox's cars, bank accounts and email, as well as a variety of other information including client lists.
Jan Sharp, chief criminal prosecutor of the U.S. Attorney's Office in Nebraska, declined to release any client lists.
According to a warrant filed by FBI Special Agent Anna Brewer, the police source's primary contact was a woman who managed the spas. That woman has not been indicted.
The police source sometimes visited the businesses as often as three times in a week, according to the warrants. He received manual stimulation from female employees each time except for the last, when he requested a massage only.
Lt. Darci Tierney, an Omaha Police Department spokeswoman who is not related to Christopher Tierney, said she couldn't comment on investigative tactics such as the spa visits.
But, she said, “we wouldn't do anything that we aren't allowed by law to do.”
Brewer also detailed the financial arrangement of the spas:
The woman who managed the businesses said she paid Knox $1,700 per week plus a $20,000 down payment. He also was allowed to visit the prostitutes for free.
He provided her with a list of about 2,500 client names. A police tipster said spa owners videotaped new clients.
In about June 2011, Knox and the woman had a “contract dispute,” and they posted competing ads on a well-known prostitution website to solicit customers, Brewer wrote. The woman operated out of an Omaha hotel, where, according to the warrant, she at times received 50 to 350 phone calls a day.
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