Putting the poisoned needle away was not a simple matter.
After all.
If she accidentally pricked herself with the needle in a moment of nervousness.
That would be no laughing matter."
"Inside the key ring."
Shinichi Kudo suddenly spoke: "Have you forgotten?
Hattori.
The victim's key ring could be opened.
And Mrs. Tsujimura's key ring.
Should be the same model as the victim's.
That being the case.
She could simply put the poisoned needle inside the key ring.
In that way.
She used the key to open the door, but after opening it, did not put the key away immediately.
And then carried the key to meet the victim.
That would not seem particularly strange."
After hearing Shinichi Kudo's words.
Inspector Megure hurried over to Tsujimura Kimie.
"Madam, may I take a look at your key?"
Tsujimura Kimie gripped her key tightly.
However, she sighed in the end.
And handed the key over.
Inspector Megure opened the key ring and took a look.
Sure enough, he found the poisoned needle inside!
"I knew it!"
Inspector Megure nodded.
Then he asked curiously, "Then what was Mrs. Tsujimura's motive?"
"I think it should be related to this photograph, right?"
Shinichi Kudo picked up a photograph from the bookshelf.
There.
The photograph showed Tsujimura Kimie and the diplomat when they were young.
"Did you notice who Mrs. Tsujimura looked like when she was young?"
"Miss Sachiko!?"
Everyone was shocked.
"They really do look alike!"
"Other than their hair color being different, they're practically identical!"
"That's only natural."
Tsujimura Kimie sighed.
"Because she is my biological daughter!"
Everyone was stunned when they heard this.
However.
At that moment.
Hattori Heiji suddenly asked Shinichi Kudo in confusion, "By the way.
Kudo.
"It was clearly your first time at the crime scene, so how did you