"Inspector, according to Zutada Yu's neighbor, there indeed was a tenant named Oda Hikari," a subordinate returned to the Police Headquarters and reported to Chi Ben Xinzhang after interviewing neighbors of Zutada Yu. "Twenty-five or twenty-six years old, skinny, with short hair, and usually quiet. The building was too old to have surveillance installed, so we have no photo of him."
"Oh, and on the night Yokoyama Jie received the bomb, a neighbor of Zutada Yu saw Oda Hikari leaving with a bag on his back. This matches the description Yokoyama Jie gave during his interrogation of the person who handed him the bomb."
The subordinate finished speaking, then added another line.
"That means, this Oda Hikari is the bomb maker," Chi Ben Xinzhang muttered to himself, frowning, his pen twirling continuously in his hand. He looked up at his subordinate and said, "Send someone to his hometown to check it out."