Thus, given the state of that assassin at the time, Zhou Tian found it much easier to kill him than the gun-wielding domain expert. After all, even though the assassin didn't confront him head-on, the occasional disruptive response indeed made Zhou Tian unhappy. And even though the assassin posed no threat to him, Zhou Tian had no desire to leave such an eyesore in his way.
As a result, after letting the gun-wielding domain expert escape, Zhou Tian, without a second word, also pursued the location of the assassin. If there was an opportunity, Zhou Tian reckoned that he would likely take down the assassin in one fell swoop.
While Zhou Tian was charging at the assassin, clearly intending to eliminate him in one go, the assassin indeed couldn't help but change his expression at that moment.