An unprecedented court martial has found Canadian Forces Capt. Robert Semrau not guilty of murder in a battlefield shooting in Afghanistan.

He was also acquitted of attempted murder and negligent performance of duty, but convicted on a military charge of disgraceful conduct.

Bill Semrau, Robert’s brother, thanked the lawyers and others who showed support. But he said the family took little solace in the decision.

“As a family, we’re disappointed in the verdict,” he said.

“We’ve always believed my brother did nothing wrong.”

Lt.-Col. Mario Leveille, one of the prosecutors, said he couldn’t explain the panel’s finding that Semrau was not guilty of murder or attempted murder, but was guilty of disgraceful conduct for shooting the insurgent.

Semrau’s lawyers will be back in court today to present a Charter of Rights argument over military sentencing procedures.

The five-member court panel, the equivalent of a military jury, spent two and a half days considering the case against the 36-year-old officer.