A federal judge has postponed a hearing on a bid to reduce an eight-year prison sentence for a former police officer who pleaded guilty to helping cover up deadly shootings of unarmed residents on a New Orleans bridge after Hurricane Katrina.

U.S. District Judge Sarah Vance postponed Wednesday's hearing until Oct 5.

The hearing was on the Justice Department's recommendation to cut Michael Hunter's prison sentence to five years.

Bobbi Bernstein, who headed up the prosecution in the case, asked for the postponement so she could attend. Bernstein must travel from the Washington D.C. for the hearing.

The shootings on the Danziger Bridge killed two people and wounded four others less than a week after the 2005 storm.