The violence was sustained and deliberate, not a moment of rage
In the quiet hours before dawn on April 8, in a residential apartment in Izumi, Osaka, two women were killed in an act of violence that speaks to one of humanity's most enduring tragedies: the lethal collision of intimate loss, financial entanglement, and wounded pride. Yuka Murakami, 41, a hospital social worker, and her mother Kazuko, 76, were found stabbed to death by a male relative who came looking after her workplace raised the alarm. Teruyuki Sugihira, 51, the man who had shared eight years of his life with Yuka before their relationship ended just weeks prior, has since been arrested and has admitted to the killing — a reminder that the end of closeness can, in the most tragic of circumstances, become its own kind of beginning.
- Two women were found stabbed dozens of times in their own home, still in their pajamas, hours after the attack had already ended.
- The violence bore the unmistakable marks of premeditation — a knife brought from outside, an unlocked entrance, an attack timed at 4 a.m. when the world was still asleep.
- Sugihira, unemployed and living nearby, had ended an eight-year relationship with Yuka just weeks before the murders, and owed her approximately 1.5 million yen in unpaid debt.
- Security footage, bloody footprints, and his own confession have placed him at the center of the investigation, with police building a case around motive, evidence, and timing.
- The case now turns inward — toward the final weeks of a fractured relationship, the weight of unresolved money, and what drove a man to arrive at a door he once knew well, carrying a knife.
On the afternoon of April 8, a male relative arrived at Yuka Murakami's apartment in Izumi, Osaka, after her workplace reported she had not come in. He found two women dead — Yuka, 41, and her mother Kazuko, 76 — both in their pajamas, both bearing the wounds of a prolonged and ferocious attack. Each had been stabbed repeatedly in the neck, with additional wounds to the head and back. Yuka showed defensive injuries on her hands. No knife was found at the scene. Autopsies placed the time of death at around 4 a.m.
Police arrested Teruyuki Sugihira, 51, an unemployed man from nearby Sakai City, days later. He admitted to stabbing Yuka and hinted at responsibility for her mother's death as well. The evidence surrounding him was substantial: security footage showed a man matching his description near the apartment in the early morning hours, bloody footprints were found at the entrance — which had been left unlocked — and valuables inside the home were untouched, ruling out robbery as a motive.
Sugihira and Yuka had been in a relationship for more than eight years. It ended in March, just weeks before the killings. She had worked as a hospital social worker. He had borrowed roughly 1.5 million yen from her, a debt that remained unpaid. The circumstances — the timing after the breakup, the early hour, the number of wounds, the financial dispute — point to a crime shaped by intimacy turned to desperation. Investigators are now focused on the final weeks of their relationship and what brought Sugihira to that door, knife in hand, before the city had woken.
On the morning of April 8, a male relative of Yuka Murakami arrived at her apartment in Izumi, Osaka Prefecture, after her workplace called to report she hadn't come in. What he found there, around 12:30 p.m., was the bodies of two women—Murakami herself, 41 years old, and her mother, Kazuko, 76—both in their pajamas, both bearing the marks of a sustained and violent attack.
The injuries told a story of brutality. Each woman had been stabbed repeatedly in the neck. Beyond that, there were at least a dozen more wounds, concentrated on the head and back. Yuka bore defensive injuries on her hands and a bruise on her cheek. Kazuko lay in the living room. Yuka's body was positioned near the kitchen. No knife was recovered from the apartment. Autopsies would later place the time of death at approximately 4 a.m.—hours before anyone discovered them.
On Friday, police in Izumi arrested Teruyuki Sugihira, 51, unemployed and living in nearby Sakai City, on suspicion of committing both murders. Sugihira has admitted to the killing of Yuka Murakami. He has also hinted at responsibility for her mother's death. According to his own account to investigators, he brought a knife with him and stabbed Yuka multiple times in the neck and other parts of her body.
The evidence accumulated around him. Security camera footage from the early morning hours of April 8 captured a man matching his description loitering near the house. Bloody footprints were found near the apartment entrance, which had been left unlocked. A dashcam recording from Yuka's car showed her arriving home at around 5:40 p.m. on April 7—meaning she had been home for hours before the attack. Valuables in the apartment were untouched, suggesting theft was not the motive.
The relationship between Sugihira and Murakami had lasted more than eight years. It ended around March of this year, just weeks before the murders. Yuka worked as a hospital social worker—a profession requiring patience, care, and the ability to manage difficult human situations. What had transpired between the two of them in those final months remains largely unknown. What is known is that Sugihira had borrowed a substantial sum from her: approximately 1.5 million yen, a debt that remained outstanding.
The scene itself—two women in their nightclothes, the violence of the assault, the financial entanglement, the timing just after a relationship's end—carries the weight of a crime born from proximity and desperation rather than chance. The entrance left unlocked suggests either carelessness or an expectation of access. The early morning hour suggests premeditation. The number and placement of wounds suggest rage.
As the investigation continues, the focus will likely turn to the nature of that final month of their relationship, the status of the borrowed money, and what Sugihira's state of mind was in the hours before he arrived at their door with a knife. For now, two women are dead, and a man sits in custody having admitted to at least one of the killings.
Notable Quotes
I first stabbed Yuka multiple times in the neck and other areas with a knife I brought— Teruyuki Sugihira, according to police
The Hearth Conversation Another angle on the story
Why would someone return to a place where they'd borrowed so much money, especially after a breakup?
That's the question underneath everything. The debt wasn't abstract—it was 1.5 million yen. For an unemployed man, that's not a small thing. It's a weight that doesn't go away.
But killing her doesn't erase the debt.
No. But desperation and logic don't live in the same room. He may have felt cornered, humiliated, trapped. The relationship ending meant he lost access to her—and maybe he never intended to repay her anyway.
The mother was 76. Why kill her too?
She was there. She was a witness, or she was in the way, or she represented the same world that had rejected him. We don't know yet. But the violence was thorough—at least a dozen wounds on each of them. That's not a moment of rage. That's sustained, deliberate harm.
The apartment was left unlocked. Does that suggest he had been there before?
Almost certainly. Eight years together means he knew the place. He may have had keys at one point. The unlocked door could mean she let him in, or he still had access. Either way, he wasn't a stranger breaking in.
What strikes you most about the timeline?
That he was there at 4 a.m., and she'd been home since 5:40 the evening before. Hours passed. Hours where something could have been said, or not said. Then the knife came out.