A woman accused of driving the getaway car after her husband allegedly massacred four people in a holdup for prescription painkillers pleaded not guilty to an upgraded robbery charge on Tuesday.

Melinda Brady now faces a first-degree robbery charge, which carries up to 25 years in prison if she's convicted. She had previously been charged with third-degree robbery.

The judge ordered her held without bail. She had been jailed on $750,000 bail since she and her husband were arrested last month.

Police said Brady told investigators that she and her husband, David Laffer, plotted the Father's Day robbery in Medford, N.Y., but that she did not know the plan involved killing.

About 20 relatives of the victims watched from the gallery of the crowded courtroom.

Brady, 29, was arrested on robbery and obstruction charges. She blamed her husband when she was led from police headquarters to a nearby precinct holding cell following her arrest last month.