Feng Yin didn't murder anyone. He used a technique to cause the trio to faint for about a day and a night which was enough time for him.
The next moment, stealthily, Feng Yin arrived at the outpost, flicked a stone with a note attached, which was prepared earlier, through the night fog and it flew out quickly.
Wu Tiejun led his blue-clothed team straight along the route, moving like a dragon and a tiger with a gradually increasing momentum.
From the initial anxiety and insecurity to the final audacity and recklessness, his charisma was gradually revealed and escalated.
If one meddles with Qian's wealth, it would inevitably get linked to Wang Sanyuan; as the highest commander of the defensive army, how could there be no severe repercussions?
This had to be considered.