LOCKPORT – Paul J. Schubert of Niagara Falls finally pleaded guilty Wednesday, on his third courtroom appearance since being presented with a plea offer in connection with as many as six armed robberies of western Niagara County convenience stores.

Schubert, 21, of Townsend Place, admitted to attempted first-degree robbery as second-degree robbery, as he acknowledged holding up two 7-Eleven stores on Buffalo Avenue in the Falls, one on Sept. 6 and one on Sept. 12. The plea, which involved a promise of no more than 10 years in prison, covered all the robberies.

However, Schubert faces as long as seven more years in prison for third-degree burglary. He pleaded guilty in June to a 2010 break-in at a Seneca Avenue home, and was admitted to a court-supervised drug treatment program, from which he was officially expelled Wednesday by Niagara County Judge Sara Sheldon Farkas.

She scheduled sentencing on all charges for March 1.