BEL AIR, Md. (AP) — A prison inmate has pleaded guilty to first-degree murder in a decades-old slaying of an Edgewood shopkeeper.

A jury convicted 52-year-old Bryan Quickley of the murder in 1980, but last year an appeals court ordered that Quickley get a new trial. He is one among dozens of Maryland convicts whose convictions were overturned following a ruling by the state’s highest court that jury instructions back then were insufficient.

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Quickley had been sentenced to life in prison at his original trial. In the plea agreement he struck on Monday in Harford County Circuit Court, he agreed to a 50-year sentence, with credit for time served since the 1979 slaying.

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Quickley, who was 17 when the slaying occurred, had remained incarcerated while his retrial was pending.

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