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BOISE, Idaho (AP) — Idaho’s highest court says one of the two brothers convicted of killing a Texas couple in northern Idaho more than 30 years ago is entitled to a new hearing after justices agreed that prosecutors violated his constitutional rights to a fair trial.

Mark Lankford and his younger brother, Bryan Lankford, were convicted of the 1983 beating deaths of 27-year-old U.S. Marine Capt. Robert Bravence and his 25-year-old wife, Cheryl Bravence, of El Paso. Each brother has blamed the other for the crime.

In an opinion issued Monday, the Idaho Supreme Court ruled that prosecutors failed to correct false testimony during Mark Lankford’s second trial and did not disclose that they had made additional promises in connection to a key state witness.

Only Justice Roger Burdick dissented.

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