C1834 Disdainful explanation
The people who were sent to investigate the Jian Wood were all dead, and not a single one returned, including some Martial Cultivators.
It wasn't that Qin Lang killed them, but Qin Lang actually didn't do anything. He just didn't try to stop them.
Qin Lang did not want to stop them, because these people had come to stop him from doing things. Maybe these people could not be considered enemies