At that time, there was no information about the suspect's body characteristics.
Finding the criminal suspect among hundreds of people was like looking for a needle in a haystack.
Moreover, it was impossible to go through each person one by one, checking if they had passed by the district and so on.
However, the body characteristic information in Lu Chuan's footprint identification report made a difference.
Comparing Suspect No. 1 and No. 2, Suspect No. 3 weighed over 100 kilograms, which was a very obvious feature.
"Although the foot traffic in the district is very high, we found this person passing by the supermarket entrance twice, both before and after the incident."
"Moreover, among all the people who passed by the supermarket and the dental clinic surveillance, only four individuals weighed over 100 kilograms and were obese."
