Satoshi Uematsu

Satoshi Uematsu (植松 聖) (born 20 January 1990), a 26-year-old (at the time of the incident) man, used to work at the care home Tsukui Yamayuri En.

His father was an elementary school art teacher, and Uematsu had trained and worked as an elementary school teacher as well.

He had lived in his house with his parents, but they moved away at some point and he remained there alone.

The Sagamihara stabbings were committed on 26 July 2016 in Midori Ward, Sagamihara, Kanagawa, Japan.

Nineteen people were killed and twenty-six others were injured, thirteen severely, at a care home for disabled people.

The crimes were committed by a 26-year-old man, identified as Satoshi Uematsu (植松 聖), a former employee of the care facility.

Uematsu surrendered at a nearby police station with a bag of knives and was subsequently arrested.

Justin McCurry of The Guardian described the attack as one of the worst crimes committed on Japanese soil in modern history.

He resigned from working at the facility in February 2016 after having been employed there for over three years.

Neighbors expressed surprise that he had allegedly committed the murders; he was described as a friendly, outgoing and good man.

However, some reported that his personality had undergone a change at some point during his employment at the facility.

In February 2016, Uematsu attempted to hand-deliver a letter to Tadamori Ōshima, the Speaker of the House of Representatives of Japan, at Ōshima's home in Tokyo but was prevented from doing so by security.

He returned the following day and this time left the letter with the security guards.

Uematsu's letter appealed for the legalization of ending the lives of those with multiple disabilities in cases where it was requested by their guardians, and asked for Ōshima's assistance in delivering his message to Japanese Prime Minister Shinzō Abe.

In it, he wrote, "I envision a world where a person with multiple disabilities can be euthanised, with an agreement from the guardians, when it is difficult for the person to carry out household and social activities."

He also wrote that the killings of disabled people would be "for the sake of Japan and world peace" as well as to benefit the global economy and prevent World War III.

After signing his name, the letter proceeded to detail an offer to target two facilities housing disabled people (possibly a reference to the two residential buildings in which he later committed the crime), and went on to appeal for certain conditions in exchange for committing the act.

In the first half of the message, Uematsu said he could kill 460 people; however, in the second half, the number he gave was 260.

He added that staff would be tied up to keep them from interfering but that they would not be harmed, the act would be swift, and that afterwards he would turn himself in.

At the end of the latter half of the letter, he signed his name again, this time with his address, telephone number, and the name of his employer.

Later that month, after his letter was brought to the attention of Sagamihara's authorities, he was arrested, detained, questioned, and then involuntarily committed to a psychiatric hospital for two weeks.

However, he was released on 2 March after doctors deemed that he was not a threat.

In his letter and in statements made after turning himself in, Uematsu explained that he was "saving from unhappiness" both the severely disabled and those who he believed were burdened with maintaining their lives.

On 20 February 2017, Uematsu was found mentally competent to stand trial.

Uematsu was sentenced to death on 16 March 2020, after the prosecution sought the maximum penalty for murder in his trial;, he was on death row awaiting execution.

As of 2023, it is currently the deadliest mass stabbing in Japanese history.

Tsukui Lily Garden (津久井やまゆり園) is a residential care center run by Kanagawa Kyodokai (社会福祉法人かながわ共同会), a social welfare organization.

Established by the local government, the facility was built in a 30,890 sqm area of woodland on the bank of the Sagami River.

, the facility housed 149 residents between the ages of 19 and 75, all of whom had an intellectual disability but many with various physical disabilities as well.

Some were capable of engaging in physical activities outdoors, while others were bedridden.

The facility was located in a remote location about 2 km from Sagamiko Station on the Chūō Main Line.

At about 02:10, Satoshi Uematsu allegedly used a hammer to break into the care centre through a glass window on the first floor.

He tied up a staff member, took their keys, and then went from room to room, stabbing the victims in their necks as they slept.

Police were called to the care center by staff members at around 02:30 local time, reporting a man with a knife breaking into the building.

However, Uematsu left the premises before being apprehended; he was recorded leaving the facility at 02:50 in security camera footage.

Armed police entered the building at around 03:00 where they discovered the crime scene.

Twenty-nine ambulances were sent to the facility.

The suspect turned himself in at the Tsukui Police Station two hours after the incident with a bag containing kitchen knives and other bloodstained sharp tools.

A knife was reportedly found in his car outside the police station.

Uematsu killed ten women and nine men aged between 18 and 70 and injured 26 more, with thirteen being injured severely.