You can say that after that incident many Warriors in the human Kingdom become very worried about their safety. Even if peak Elite grade warriors could die like this, then who will protect them? Because of this, they also decided not to go to the danger zone for some days.
Because of this, a situation like this was created in the human Kingdom. Not only that everyone also can see the security around the human Kingdom also increased.
"Really, who could have done this? If we are unable to find the real mastermind behind this then it could also become risky for us."
"Sigh, you are right. Unfortunately, even the doctors were unable to say anything. Or even if they already found out the reason they did not share the information with us."