PITTSBURGH - A Masury man testified in his own defense Friday, as both sides finished presenting their evidence in a $2 million federal fraud trial.

U.S. District Judge J. Nicholas Ranjan delivered final instructions to the jury after five days of testimony in the case of John O'Brien, who is the last of five defendants to face trial in a case involving the Sharon, Pennsylvania-based Primary Health Network. While others charged in the investigation previously pleaded guilty, O'Brien has maintained his innocence.

The judge told jurors they must decide the facts based only on evidence seen or heard during the trial. He explained that O'Brien is charged with conspiracy to commit wire fraud and three counts of wire fraud. To find him guilty, the jury must agree that the government proved every part of those crimes beyond a reasonable doubt.

During the trial, the jury heard from expert witness James J. McGuckin, Jr., regarding construction bidding. They also heard from Jack Laeng, an alleged co-conspirator who pleaded guilty and agreed to testify for the government. O'Brien also took the witness stand to testify in his own defense.

The case involves allegations of a scheme to defraud the healthcare nonprofit using a company called TopCoat. Prosecutors claim the company submitted invoices for work that was never performed. The judge noted that if O'Brien had an honest belief that the invoices were accurate, it would serve as a "good faith" defense.

Court is scheduled to resume on Tuesday for closing arguments. After the lawyers finish their final remarks, the jury will begin private deliberations to reach a verdict.