Overview
- A resident found the boy near the apartment building entrance around 1:20 a.m. on January 1 and called 110.
- The child lived on the ninth floor of a 13-story condominium in Nishi-Shinjuku 4-chome.
- He was transported to a hospital, where his death was confirmed shortly afterward.
- The parents, both in their 40s, told police they went out after midnight for Hatsumode and left the boy sleeping at home.
- The parents reported finding the balcony window open upon returning, and police are investigating a possible fall from the balcony.