A Maine official said prisons are safer than they were three years ago, despite last week’s slaying of an inmate at the Maine State Prison. WMTW-TV reported that Maine Corrections Commissioner Joseph Ponte said little could be done to prevent the killing of Micah Boland, who died after he was stabbed 87 times by another inmate Feb. 28. No one admitted to seeing the stabbing. Ponte said that prisons have become safer overall and that staff cannot oversee everything. He said hiring more prison staff would not prevent similar incidents. Another inmate, Richard Stahursky, 35, was charged with murder Tuesday.