The only reason Bruce had yet to commit murder wasn't even because there was still good in him—there just wasn't anything that pushed him far enough to trigger killing intent.

Now, as soon Charlie did it, he was ready to kill without hesitation.

He was too much of a threat to be let free, but Charlie considered himself too much of a virtuous man to physically harm a brat like him.

Bending Bruce's mind did two things—it would permanently stop him from hurting the innocent, and secondly, it wo