MILWAUKEE COUNTY, Wis. (CBS 58) – He killed and dismembered a 19-year-old woman years ago, yet he was in court Thursday seeking his freedom.

The case of Keith Addy dates back 15 years. He was sent to a mental institution after the murder.

Despite doctors’ recommendations that Addy could be released under intense supervision, the judge denied his fifth petition for conditional release.

In 2003, Addy was found not guilty by reason of mental disease or defect for the killing of 19-year-old Anna Marie Lewandowski. He was 40 years old at the time.

When Lewandowski arrived at Addy’s home, he attacked her with a hammer and stabbed her before dismembering her body.

Addy was sent to Mendota Mental Health Institute where doctors say he is being treated for Schizophrenia.

Doctors say he is doing well on medication and in his mental rehabilitation. However, Lewandowski’s family says they hope he never goes free.

“I could not sit there and listen to that and I can’t fathom. Did you, you people know what he did to her right? They couldn’t ID her body except for a tattoo on her ankle? That’s the only reason they knew it was even here,” said Annette Lewandowski, the victim’s mom.

The judge said Thursday he does believe Addy will be released sooner rather than later. He is able to petition for his release again in six months.