Attorneys for a former Northern Arizona University student are asking the state Court of Appeals to dismiss a first-degree murder charge against their client. A Coconino County judge rejected the bid last month.
Attorneys for Steven Jones filed an appeal in the state Court of Appeals this week asking the court to put the case on hold while considering their request to overturn the judge's decision.
They argue the jury acquitted Jones of first-degree murder in a 2017 trial.
They said trying him again on the same charge amounts to double jeopardy.
Jones is accused in the shooting death of 20-year-old Colin Brough and wounding three other students.
Jones claimed self-defense after an October 2015 argument at an off-campus apartment building spilled onto the Flagstaff campus.