BRIDGEPORT — A civil suit against a Westport business man, involved in a decades-long sex trafficking operation in the state, has been withdrawn.

The lawyers for several men who claimed to have been victimized by 74-year-old William Trefzger and millionaire business man Bruce Bemer, agreed to drop the suit against Trefzger as the case was about to go to trial Friday in state Superior Court in Bridgeport.

“The plaintiffs’ attorneys analyzed the case appropriately and we are glad they decided to withdraw the case against Mr. Trefzger, said his lawyer, Edward Gavin.

The civil case is still proceeding against the 65-year-old Bemer, the owner of the New London-Waterford Speedbowl and other businesses including a motorcycle dealership in Hartford.

Bemer was convicted in state Superior Court in Danbury of four counts of patronizing a trafficked person, and one count of criminal liability for trafficking a person. He faces up to 60 years in prison when he is sentenced June 6.

Trefzger was among three men arrested amid allegations they participated in a trafficking operation that preyed on young men with addiction problems and mental health disorders.

Trefgzer later pleaded guilty to one count of patronizing a trafficked person — marking the first time anyone in Connecticut had been convicted of the charge. He was sentenced to one years in prison.