Crime scene: 162 mystery solving puzzles to find out who the murderer is

Chapter 25 A Hundred-Yuan Coin Murder

Outside the main entrance of the student dormitory building, a corpse fell on the ground with its back up, and a feather arrow shot vertically into its back. From the posture of its head facing the door and its feet facing the avenue, it was obvious that it died just as it was about to open the door after returning from going out.After investigation, the name of the deceased was Nakano.The detective turned over the body and found three 3-yuan coins under the body; in the wallet of the deceased's pocket, there were 100-yuan and 10-yuan coins neatly placed.

The detective asked the dormitory administrator: "How many students live in this building?"

The administrator said: "Now is the summer vacation, and most of the students have gone home. Only Nakano and Ito are left. They are both archery players. I heard that there will be a competition next week."

He raised his head and pointed to the room on the second floor facing the main entrance and said, "That's Ito's room. However, Ito hasn't come down from the second floor after dinner today."

The detective came to Ito's room and woke him up.Ito said in surprise: "Do you doubt me? Please don't be joking. Nakano was killed by an arrow in the back when he was about to open the door! Even if I wanted to kill him, I could only see the top of his head from the window. Can't shoot him in the back!"

The inspector went to the window, leaned over to have a look, then turned around and took out three hundred yuan coins, and said to Ito: "This is yours, maybe there are your fingerprints on it."

Ito saw it and stammered, "Maybe it fell out of my pocket accidentally when I came back in the evening."

The detective said: "No, you used it to set a trap for Nakano!" How did Ito, who lived on the second floor, murder Nakano?

[Answer] Ito placed coins at the door in advance. When Nakano came back, he bent down to pick up the coins when he saw them.At this time, Ito, who lived on the second floor, could easily aim at Nakano's back.

(End of this chapter)