The federal jurors weighing 63 charges in the Dorothy June Brown fraud trial ended their third full day of deliberations Tuesday without a verdict.

The jury in the complex case is sifting through mounds of evidence that was presented over 15 days during the trial and reviewing documents.

Brown is charged with defrauding the four charter schools that she founded of $6.7 million and then participating in a scheme with two former administrators to cover it up.

The defendants are facing counts of fraud, conspiracy to obstruct justice, obstruction of justice, and witness tampering.

When U.S. District Judge R. Barclay Surrick charged the jurors on Thursday, he spent nearly three hours explaining the law before they began a half-day of deliberations.

The bulk of the case centers on 48 counts of wire fraud - instances of fraud that caused money to be transferred between banks across state lines.

Late Monday, jurors asked the judge whether they had to reach unanimity on each charge or could render a partial verdict.

On Tuesday morning, the judge pointed to the length of the trial and urged the panel to continue working to reach agreement on all the charges.