Xiang Shan and Hiroshi Matsushima soon found the resources they were looking for in that scumbag's house. Then, he left the words "Murderer, the Hero who stabbed Bengel" on the wall using his finger.
Below it, there was also a QR code. This QR code led to a webpage which recorded some of Congriff's crimes.
Then, he reset the personal sound system in the house. If someone knocked or visited, it would use Congriff's voice to drive them away. Additionally, Xiang Shan slightly altered the dead man's email auto-reply mechanism to make the auto-replies look hand-written.
These things also flowed out of his thoughts. He seemed very familiar with these tactics.
Such methods could buy him a little time.
After he left Pine Eagle City, any explosion of this situation would only tie up a portion of the Protector's attention.
It was indeed a method that killed two birds with one stone.