For some reason, Dean suddenly felt something was off about the way Nico was looking at him... a certain Kiriki-like quality to it.
He instinctively avoided the other's gaze. "Nico, keep talking!"
Obediently, Nico withdrew his gaze. He walked over to the platform covered with photos, picked up a picture of a male victim, and pointed to the rope on it. "If there were two perpetrators in this familicide, one being the seasoned murderer Xiami, and the other a novice, then this rope was very likely handled by the newcomer."
He paused, lowered his head, and sighed.
"Xiami's exposure was unexpected and sudden. There might be skin tissue accidentally left by the newcomer on the rope. Additionally, if we had noticed this at the time and scrutinized Xiami's social circle, finding a matching suspect would have been easy. However, three years have passed. The clues on the rope may no longer exist, and investigating Xiami's connections now would be much more troublesome.
