Zhang Yean fell into her memories.
She said somewhat guiltily, "If this metal canister was moved after the scene investigation, why didn't we discover the dagger then?"
"Moreover, I remember the scene investigation was very thorough at that time."
Jiang An picked up a piece of broken brick with a hole in it before him.
He said, "Because this is a hollow brick, I highly suspect the dagger just happened to fall into the hole of the hollow brick."
Wan stood up and came over with a complete hollow brick to compare.
"It is indeed as Jiang An said; the dagger can fit perfectly into the hollow space."
Li Jian looked at it and nodded.
"Zhang Yean, don't blame yourself."
"If it was a pile of hollow bricks then, probably no one would have thought of this possibility."
Then, he said, "Zhang Yean, observe carefully later for any fingerprint marks on the dagger handle."
Zhang Yean quickly responded, "Mr. Li, okay!"
