(AP) — The husband of an Omaha woman who authorities say was among four slain by a man recently released from prison has filed a $7.5 million claim against the state of Nebraska.

The claim filed Monday for Michael Kruger says the death of 33-year-old Andrea Kruger could have been prevented. A claim against a governmental entity is a required Nebraska legal step before a lawsuit can follow.

Twenty-seven-year-old Nikko Jenkins has pleaded not guilty to killing Kruger and three other people within a month of leaving prison on July 30. He had served more than a decade for robbery, assault and weapons convictions.

A spokeswoman for the Nebraska Department of Correctional Services says prison officials could not comment.