The higher-ups of course were alerted the second, Situ Ziyu walked inside the council, they were aware of how crazy Situ Ziyu can be when he wanted to which was why they sent a guard to keep an eye on Situ Ziyu. They knew that the latter will try something after all, Situ Bolin had asked for the removal of Situ Ziyu from his post.
It would be a fascinating miracle if the latter was to simply ignore the provocation of his cousin, who had been revolting against the main family of the Situ family for a long time.
And no sooner did they send a guard, than the investigation and crime department received word that Situ Ziyu was beating the young vampire who was caught by Situ Bolin under the suspicion that he was the one who was killing the vampires by taking odd sorts of jobs one after another, even the identity of the young vampire was suspicious which was why they were certain that Situ Bolin caught the right person as well.