As the leader of the Divine Light Sect, Tuo Jin's mental capacity far surpassed that of any ordinary person. If the young man in front of him had wanted to eliminate the person who had wanted to avenge Lin Hantian, he would have also killed Lin Jue after killing his two disciples.
Why spend so long toying with Lin Jue? With his power, it was easy to just kill Lin Jue. But, he had waited until the other two Golden Essence elders of the sect had appeared before he had made a move. Furthermore, he had challenged the three of them at once... and in the end, he had only killed Lin Jue.
What did this mean?
It signified that the man wanted to demonstrate his power in front of all of them. By challenging the three Golden Essence elders of the Divine Light Sect, it was simply for him to shock the whole sect. The man was definitely not here just regarding the death of Lin Hantian.