A Bryn Mawr man has pleaded guilty to killing a Villanova University student and critically injuring another when he crashed a stolen car into their vehicle while fleeing from police in September.

Donnie Sayers, 29, had earlier fired his attorney and rejected a previous plea of 12 to 25 years in prison from the district attorney's office.

Sayers pleaded guilty to homicide by vehicle while driving under the influence, aggravated assault, theft and other related charges.

He was immediately sentenced to 13 to 26 years, according to court records.

Sayers was in court Friday for jury selection for a trial that would have started next week, when he requested another plea agreement, according to the district attorney's office.

Contact staff writer Mari A. Schaefer at 610-892-9149, mschaefer@phillynews.com, or @MariSchaefer on Twitter.