(AP) — A new state report says prison officials should have done more to get treatment for a former inmate charged with killing four people in Omaha within weeks of his release.

The state Ombudsman’s Office said Tuesday that the Department of Correctional Services missed several warnings about Nikko Jenkins mental health before his release in July.

The 27-year-old Jenkins spent most of the last two years of his sentence in an isolation cell because of behavior problems. The report says Jenkins’ extended segregation kept him from participating in programs that might have helped.

The report says corrections officials could have tried to have Jenkins committed to a mental hospital instead of releasing him.

Corrections officials said they disagree with the report’s allegations, but declined to comment because of pending litigation.