Who’s the Target?

Was the shooter the person in the crowd who affected Yohana? But if he was, Henrie couldn't tell, as Yohana could move freely when the shooter planted the bullets on Niels' body. If he wasn't, then there must be someone else involved.

The shooter mentioned Ancient Humans. Judging from his reaction when captured, Henrie doubted he would reveal any information about the organization or His Lordship. 

In fact, it was more possible that he would mislead him with false information so Henrie would never catch the real culprit behind this.

First, Henrie needed to discern why His Lordship wanted to kill Niels. Was it Niels or the exiled prince he targeted? If the target was Niels, could this person know about him substituting for the real Ansgar? 

Could it be Ansgar who wanted Niels dead so he wouldn't open his mouth about this, and Ansgar would be free forever?