(AP) — The Nebraska Supreme Court has rejected a claim for compensation under the state’s wrongful conviction law for an inmate whose 1985 murder conviction was vacated, but who is serving a life sentence for an armed courtroom escape attempt more than two decades ago.

Troy Hess is serving life for kidnapping, assault and weapons counts for the 1993 escape attempt from a Lancaster County courtroom in which he briefly took a prison guard hostage.

Months after the standoff, the Nebraska Supreme Court vacated Hess’ 1985 second-degree murder conviction in another case because of a faulty jury instruction.

Based on that ruling, Hess sued for $500,000 under the state’s wrongful conviction act. The Nebraska Supreme Court denied his claim Friday, saying he had not shown he was innocent of the murder charges.