Isaac lets out another chuckle, finding it hard to tear his eyes away from Charlie. When the zombies first came life had been so uncertain, and Isaac had obviously seen enough horror to last a life time. He honestly wasn't sure how they'd be able to rebuild and create safe enough environments for babies to even exist. The Mayor has really done a lot to ensure that society can continue to thrive, even in this small capacity, and Charlie is proof of that. He only wishes his own children could have been a part of all this. "And I hear it only gets worse as they get older," he says with amusement.
He's made himself familiar with the case of James Hawkins in the past day, known around Austin as the Cop Killer, and how he'd been sentenced to death. It isn't his job to judge the affection Addie has for her brother, even if he was (and still is) a murderer. What matters now is any current connection she might have with him. Nodding at her words, he asks, "And how did he find you?"