Yukie Murakami (66) and Yasuko Takeuchi (70), who live near the scene, were stabbed with knives in Ebe, Nakano City. Lt.

Yoshiki Tamai (46) and Sergeant Takuo Ikeuchi (61) of the Nakano Police Station were shot with hunting rifles, killing a total of four people. Police arrested agricultural suspect Masanori Aoki (4) on suspicion of murder against Sergeant Ikeuchi. Police are investigating the possibility that the suspect may have attacked the two people in a planned manner.