Frederick Tanzer, 66, appeared in a federal courtroom in Dayton on Monday for a pretrial detention hearing, where a magistrate ordered him to remain in custody until his trial.
Tanzer, a Cincinnati-area doctor, was arrested less than a week ago in connection to a 1989 rape cold case. Court documents allege he is a “serial sexual predator” who targeted multiple women over three decades.
The U.S. Attorney’s Office stated that Tanzer practiced medicine in Ohio, Kansas, and Colorado. Investigators identified him earlier this year as the prime suspect in the 1989 Cincinnati rape. DNA evidence from the victim’s clothing matched a sample collected from a coffee cup Tanzer had discarded…