HILO, HAWAII (HawaiiNewsNow) - It's the break investigators working the "Peter Boy" Kema case have been waiting 19 years for: The boy's mother is now cooperating with investigators.
Sources say that Jaylin Kema has been meeting with police and prosecutors for weeks and they are making significant progress in figuring out what happened to the 6-year-old boy in 1997.
Parents Jaylin and Peter Kema have been the only suspects in Peter Boy's disappearance, but police were never able to build a case.
Then, in April, both were arrested and indicted in one of Hawaii's most well-known unsolved murder cases.
It was widely known that the couple abused their children, but Peter Boy got the worst of it.
Peter Boy's disappearance in 1997 set off intense police investigations and a media firestorm. It also raised serious questions about state Child Protective Services, and triggered a series of reforms aimed at better protecting abused kids.
The Kemas had been facing state CPS investigations for years before Peter Boy's death, and documents showed he had been the victim of repeated incidents of abuse. At just 3 months old, he was brought to Hilo Hospital with multiple new and healing fractures.
The Kemas' other children hoped one of the parents would turn on the other -- so the family could finally get answers.
It appears that months behind bars have had an impact on Jaylin, who is isolated from the rest of the prison population for her own safety.