Waiser Walter, 35 Courtesy of Honolulu Police Department
Courtesy of Honolulu Police Department
What Happened in 2016
On the night of the attack, Walter stabbed 4-year-old Jah-Marien to death inside a McCully apartment and also attacked the boy’s aunt, Koshiba, who survived her injuries. Walter, who was known to the family, was quickly identified by Honolulu police as the suspect. The violence shocked the McCully neighborhood and drew widespread attention across Oahu. Prosecutors later described the killing as one of the “most heartbreaking acts of violence” their office had handled, according to Hawaii News Now.Why the Case Took Nearly a Decade
Walter was charged with second-degree murder and attempted murder shortly after the 2016 stabbing. He initially entered guilty pleas and was set to be sentenced to life in prison with the possibility of parole, with the Hawaii Paroling Authority to determine the minimum number of years he would serve before becoming eligible for a parole hearing. But before sentencing could take place, Walter withdrew those pleas, forcing the case back to square one. The withdrawal triggered a new round of hearings and legal proceedings that stretched across several years. Court records show the case cycled through multiple continuances and procedural delays before Walter ultimately returned to court in January 2026 to plead guilty again. For Jah-Marien’s family, each postponement reopened wounds. Koshiba, who fought to protect her nephew that night, has carried both physical scars and the weight of surviving an attack that took a child’s life.The January 2026 Guilty Plea
On January 24, 2026, Walter appeared in a Honolulu courtroom and pleaded guilty to murder in the second degree for killing Jah-Marien and to attempted murder for the attack on Koshiba. Reporter Cate Piper Labas of KITV reported that the plea came after years of legal back-and-forth, with Walter ultimately accepting responsibility in open court. The plea covers both charges stemming from the 2016 attack, meaning Walter will be sentenced for the full scope of the violence that night.What a Life Sentence Means in Hawaii
Hawaii does not have the death penalty. For second-degree murder, the state allows a sentence of life in prison with the possibility of parole. Under Hawaii law, the court imposes the life term, and the Hawaii Paroling Authority later sets a minimum term — the number of years a defendant must serve before becoming eligible for a parole hearing. That minimum term can range widely depending on the severity of the crime, the defendant’s history, and other factors weighed by the Paroling Authority. In a case involving the killing of a young child and the attempted murder of another victim, legal observers expect the minimum to be substantial. However, the exact number of years will not be determined until after sentencing. As of March 2026, a sentencing date for Walter has not been publicly announced.A Family’s Long Wait
Jah-Marien was 4 years old when he was killed. For his relatives, the legal process has compounded a grief that began the night of the stabbing and has never fully subsided. National outlets, including People, covered the January plea under the framing of a family that waited a decade for accountability. Koshiba, who was also a victim that night, has had to relive the attack through repeated court appearances and public coverage. The withdrawn pleas added years of uncertainty to an already painful process. For neighbors in McCully and across Honolulu, the case has served as a stark reminder of how long serious criminal cases can take to resolve in Hawaii’s court system, even when the facts are largely undisputed.What Comes Next
Walter’s guilty plea locks in his conviction on both charges. The remaining steps are sentencing by the court and the subsequent determination of a minimum term by the Hawaii Paroling Authority. Until that minimum is set, the practical question of how long Walter will serve before any possibility of release remains open. Prosecutors have signaled they will push for the maximum consequences available under the plea. The family is expected to deliver victim impact statements at sentencing, which will give Jah-Marien’s relatives their first opportunity to address the court directly about what they lost in 2016.About the Author
