The trade convoy had simply set a trap, wanting to find out who was tracking them; they had not discussed whether to drive away the other party or to kill them. In Lin Wu's view, there was no need to discuss expulsion or killing; they were definitely going to take them out. The reason was simple: kill them, and when they revived, they could each hate you individually. Drive them away, and they would unite in their hatred for you.
Moreover, the two parties had exchanged words before, and since the others had a book on agriculture, it would be inconceivable not to kill them.
As soon as Lin Wu fired his gun, everyone else followed suit. Compared to zombies, it was harder to land a headshot on a player. After one volley of shots, only Lin Wu's first sneak attack resulted in a headshot. Fortunately, the convoy's firepower was strong, taking two lives in a single round.