PITTSBURGH — A drunken driver talking on a cell phone in a speeding car will serve up to 14 years in prison for a hit-and-run crash that killed a Butler County school teacher.

Allegheny County Common Pleas Judge Edward Borkowski on Monday sentenced Matthew Lyle Crowson, 26, of Brownsville, Fayette County, to 7 to 14 years in prison for the 2007 fatality on Interstate 79 in Marshall Township.

Renee M. Parkinson, 26, of Callery died when Crowson's car rear-ended her vehicle. Parkinson was headed home after watching Pittsburgh's Fourth of July fireworks display, authorities said.

Parkinson taught music at Fawn and Heights elementary schools in the Highlands School District.

Crowson in June pleaded guilty to felony charges of vehicular homicide while driving under the influence, vehicular homicide and accidents involving death or injury.

Additionally, he pleaded guilty to misdemeanor charges of involuntary manslaughter, DUI, and hit-and-run, and four traffic violations including leaving the scene of an accident.

Crowson, following his release from prison, will be placed on probation for two years, according to Borkowski's sentence.

State police said Crowson's blood-alcohol level was nearly twice the legal limit when his 2007 Pontiac G6 sedan, traveling more than 100 mph, slammed into the back of Parkinson's car about 10:15 p.m.

The collision just south of the Warrendale exit threw Parkinson out of her 1999 Pontiac Sunfire, which was forced off the highway and into an embankment. She was pronounced dead at the scene.

Crowson suffered only minor injuries and drove away. Other motorists, meanwhile, stopped to help Parkinson.

The defendant drove about 2 miles to a convenience store off the Warrendale exit. Troopers caught up to Crowson after he ran into woods near the store.

Crowson pleaded guilty to 10 of 11 charges. The only charge withdrawn was a traffic ticket for careless driving.

His attorney, William A. Johnson, of Washington, Pa., could not be reached for comment Monday.

Parkinson was a 1998 graduate of North Allegheny High School and a 2003 graduate of Indiana (Pa.) University.

She began her teaching career in Fairfax County, Va. She had been employed by the Highlands School District for three years.