HAMILTON, OH (FOX19) - The twin brother of the Hamilton doctor who is facing sex abuse and drug charges is now also under investigation.
Dr. Mark Blankenburg is behind bars at the Butler County Jail on a $1 million bond. He has 36 sex and drug charges against him.
Now, his brother, Scott, is also in trouble.
Scott had his office in Fairfield searched.
The Butler County prosecutor says he is the suspect of a grand jury investigation. Some paper and electronic medical records for prescriptions were looked at. But it's not just a drug investigation. Officials are also looking into possible sex charges.
In court Wednesday, Scott Blankenburg's attorney's tried to stop the subpoena, but the doctor did face a judge.
Right now he has not been charged, only investigated.