A prominent Pittsburgh attorney has been charged in connection with a major cocaine-trafficking investigation involving current and former Penn State fraternity members — a case that prosecutors say stretched across multiple states.

Paul Robinson, a managing attorney at the Pittsburgh law firm Meyer, Darragh, Buckler, Bebeneck & Eck, is accused of helping conceal evidence connected to the alleged operation. His son, Thomas Robinson, is among the students prosecutors have identified as an alleged leader of the trafficking network.

In total, 14 people have been charged in the investigation. Prosecutors allege that members connected to the Sigma Chi and Delta Upsilon fraternities helped coordinate the distribution of cocaine through contacts in New York and Philadelphia.

Paul Robinson faces a felony tampering charge and an allegation of hindering the investigation. Prosecutors claim he took steps to conceal evidence, including a safe that allegedly contained cash and drugs.

The elder Robinson has a long-established legal career in Pennsylvania. He earned his law degree in 1992 and is admitted to practice law in Pennsylvania and West Virginia. His professional work has included transportation, commercial, construction and insurance law.

His law firm confirmed that it was aware of the charges but stressed that the allegations concern Robinson personally and do not involve the firm, its clients or the legal services it provides.

Meanwhile, Penn State announced that Delta Upsilon had been placed on interim suspension while the university conducts an investigation. The school said Sigma Chi operates outside the university’s oversight.

Prosecutors allege that Thomas Robinson and Agostino Abbatiello were among the key figures in the operation. Abbatiello, 24, is accused of supplying cocaine to others involved in the alleged network.

According to a criminal complaint, an undercover investigation allegedly uncovered cocaine transactions involving quantities of up to one kilogram, with individual batches reportedly selling for tens of thousands of dollars.

Pennsylvania Attorney General Dave Sunday described the alleged operation as a coordinated and highly profitable trafficking organization involving fraternity members and their associates.

Abbatiello surrendered to authorities Tuesday and was arraigned, according to prosecutors.

“We are pleased to report that the most significant members of this cocaine-trafficking organization are accounted for, and will have their fair process in court,” Sunday said.

Penn State officials also condemned the allegations and said criminal activity has no place within the university community.

The case is now moving toward preliminary hearings, where prosecutors will begin presenting evidence supporting the charges.

All defendants are presumed innocent unless proven guilty in court. The investigation remains ongoing as authorities work to determine the full scope of the alleged trafficking network and the roles of those accused.