Four people were found stabbed Friday morning, three of them fatally, in their home in Hamamatsu, Shizuoka Prefecture, and a 31-year-old man who was on the run was arrested four hours later for allegedly wounding his father, the Shizuoka Prefectural Police said.
Yoshitaka Ikeya, a company employee, has admitted stabbing his father, and the police said they are investigating his connection to the other stabbings, they said.
At around 3:10 a.m. Friday, the police received a call from his father, Hisakatsu, a 60-year-old restaurant owner of Hamamatsu's Kita Ward, saying he had been stabbed in the side by his son, who had fled in a car. The suspect, who apparently caused a car accident in the ward, left the vehicle on a street and allegedly fled.
The suspect's grandmother, 83, mother, 62 and sister, 32, were confirmed dead, the police said.
According to the Hamamatsu board of education, pupils of an elementary school in Kita Ward were told to come to school an hour late because of the incident.