Shinichi: “This Is Terrifying-Sleeping Kogoro's Arm Can Move on Its Own!”

He quickly began explaining his deduction.

"I'll explain my deduction first.

In my view, this so-called locked room

wasn't completely sealed after all.

Although the windows and door here were locked,

there was

a gap beneath the door wide enough for a key to pass through easily!

All the culprit had to do was kill the diplomat first,

then use fishing line to set up a clever mechanism.

That way,

the suspect could leave the room, lock the door from outside,

and use the gap beneath it to operate the mechanism and put the key back into the diplomat's pocket!

This mechanism would be easy to set up.

I can perfectly recreate it in a moment.

And the culprit in this case is...

you!

Mr. Tsujimura Toshimitsu!"

"Huh?"

Everyone was instantly shocked by his words.

Then they all turned to look at Tsujimura Toshimitsu.

Tsujimura Toshimitsu was the diplomat's father.

No one could have imagined that a father would kill his own son!

What shocked everyone even more was

that Tsujimura Toshimitsu actually nodded and admitted that he was the culprit!

"That's right.

I am indeed the murderer.

I never thought

you would discover it after all.

I did kill him using that method."

"What!?"

When they saw Tsujimura Toshimitsu admit it just like that,

everyone was stunned.

This scene was completely beyond anyone's expectations.

However,

Hattori Heiji became extremely pleased.

"Heh heh~

Uncle~

How about that?

Looks like you don't need to deduce anything anymore.

The truth is already out in the open!"

"...No!

He isn't the culprit!"

Just then,

a voice suddenly came from the doorway.

Everyone turned toward the voice.

What they saw was a person whose appearance shocked them all!

"Shinichi!?"

"Kudo, kid!?"

Everyone froze. No one had expected Shinichi Kudo to appear!

"That's right.

What