To be cautious, Zhang Zian asked Sun Xiaomeng to text back Qian and Li and ask them for details on how they lost their dogs. They replied to the texts soon after.
After compiling the information, the three of them identified a pattern. All the dogs were lost in Dongcheng District, near the Family Housing Facilities of the university, the hospital and the state-owned enterprise. These facilities were old and were under-equipped with surveillance cameras. There were many dead ends and the security guards were sloppy with their jobs which left them vulnerable to intrusion.
Among them, Mr. Li claimed that although the surveillance did not record the dog trapping, it recorded a suspicious vehicle. He sent over the screenshot from the surveillance video.