After the interrogation and investigation of the criminal gang involved in arms trafficking,
Lin Wendong was almost certain that the suspect in the 4·22 robbery and shooting case had purchased firearms from this gang.
He then traced the account the other party used to contact for buying the handgun, as well as the intermediary.
Since purchasing the guns, that account hadn't been accessed again.
Using the IP address of the account's last log-in, he pinpointed an area.
Additionally, starting with the intermediary, they peeled away layers of the case through investigation and evidence collection, interviewing local residents.
Eventually, they locked onto the criminal Zhao Dayang.
No matter how deeply he had hidden, the police finally found him through various clues, unraveling the mystery.
When he was caught, he was somewhat incredulous that the police had found him so quickly.