The Sagamihara Care Home Killings

The attack at Tsukui Yamayuri-en

In the early hours of July 26, 2016, a former employee entered Tsukui Yamayuri-en in Sagamihara, southwest of central Tokyo. By the time the attack ended, 19 residents had been killed and 26 other people, including residents and staff, had been injured. Contemporary and later Japanese reporting describe the event as 45 people killed or wounded in total.

Uematsu surrendered at a police station after the attack. Investigators quickly connected him to the facility because he had worked there and had previously expressed violent, discriminatory ideas about people with severe disabilities.

Warning signs before the killings

Months before the attack, Uematsu had communicated an intention to kill people with disabilities. He had also been involuntarily hospitalized for a period after authorities became aware of those statements. The later criminal case did not treat those earlier events as a substitute for proof of what happened on July 26, but they became important context in assessing planning, motive and criminal responsibility.

After the murders, disability-rights advocates in Japan emphasized that the crime should not be understood only as an isolated act of violence. The attack also exposed persistent stigma toward people with intellectual and developmental disabilities and raised difficult questions about privacy, identity and how victims are remembered publicly.

Trial and criminal responsibility

The central dispute at trial was not whether Uematsu had carried out the attack. The defense argued that his mental condition, including the effects of marijuana use, meant that he should not be held fully criminally responsible. Prosecutors argued that he understood his actions and had planned the crime.

On March 16, 2020, the Yokohama District Court found Uematsu criminally responsible and sentenced him to death. Presiding Judge Kiyoshi Aonuma described the crime as premeditated and emphasized the deliberate intent to kill. The court rejected the defense position that his mental state removed legal responsibility.

The death sentence became final

Defense counsel filed an appeal, but Uematsu personally withdrew it. His death sentence became final at the end of March 2020. Later litigation also challenged the validity and consequences of that withdrawal; Japanese reporting records that the courts ultimately treated the withdrawal as effective.

Finality of the original conviction did not end all litigation. Japan's criminal procedure permits requests for retrial in limited circumstances, and Uematsu later began filing such requests.

First retrial request

Uematsu filed a first request for retrial in 2022. The Yokohama District Court rejected it, and the Tokyo High Court also refused to reopen the case. On October 27, 2025, the Supreme Court rejected a special appeal, making the refusal of that first retrial request final.

The courts did not disturb the original findings that Uematsu committed the murders and was criminally responsible. The first retrial effort therefore ended without a new trial.

A second retrial effort in 2026

In January 2026, Uematsu personally filed a second request for retrial. The Yokohama District Court rejected that request in February. On August 7, 2026, the Tokyo High Court dismissed his immediate appeal and upheld the lower court's refusal to reopen the case, describing the arguments as materially similar to claims already rejected.

According to Mainichi Shimbun reporting published on August 14, Uematsu submitted a special appeal to the Supreme Court dated August 8. As of August 24, 2026, that special appeal is the latest publicly reported procedural development. The death sentence remains final while the retrial request is litigated.

Why the victims' privacy matters

Many of the victims were not publicly identified by name. Families and advocacy groups have expressed differing views about anonymity, memorialization and the social stigma that can surround disability in Japan. This archive respects the available public record rather than attempting to reconstruct private identities from unofficial sources.

The absence of public names does not make the victims anonymous in a human sense. They were residents with families, routines and relationships. The scale of the legal record should not obscure the individual harm caused to 19 people who were killed and the many others who survived.

Timeline

Current status

The Sagamihara care-home killings are solved and adjudicated. Satoshi Uematsu's conviction and death sentence remain final. A second retrial request has been rejected by the Yokohama District Court and Tokyo High Court; a special appeal to the Supreme Court was pending in the latest reporting available on August 24, 2026. That procedural challenge does not itself overturn or suspend the established conviction.