OAKLAND, Md. (AP) — A judge in Oakland has added two life terms plus 60 years to the sentence of a Maryland prison inmate who stabbed two people while escaping from a road crew along Interstate 68 in 2012.

Larry Johnson, 40, was sentenced Tuesday. He was already serving 20 years for carjacking and handgun convictions in Prince George’s County.

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Johnson was convicted in October of two counts of attempted first-degree murder, carjacking and escape.

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Johnson stabbed a correctional officer with a pair of pliers and then stole and wrecked a prison van before flagging down a motorist from West Virginia. He stabbed the driver in the head, stole his car and drove 13 miles down Route 495 before hitting a tree in a residential development near Deep Creek Lake.

(Copyright 2013 by The Associated Press. All Rights Reserved.)

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