"Am I the only person out there that has trouble understanding the fact that Harry walked into the cargo box, picked up a three year old boy, and COMPLETELY IGNORED the six-year-old sitting in the blood next to him??? So Dexter gets a new family and Brian gets hospitalized? I've been trying to understand this for months now, and I would have thought there'd be some sort of explanation, but how can anyone consider Harry to be a moral compass knowing full-well that he could have taken both children in and didn't! And what kind of a$$hole splits up two small traumatized children??"

"Harry knew Brian was too old to be helped; he was hopelessly ruined. I remember Rudy talking about that.

Harry was hoping that Dexter was young enough to be saved. Harry showed great wisdom in leaving Brian behind. Even though it seems cruel, Brian would have eventually destroyed their family.
"

"In do truely agree. But I think Harry was afraid at this point. I also think Harry was worried that if Dex made contact with his bro. Then Dex may have been swayed to the dark side for ever. That all of his (Harry's) teaching would be for nothing. Brian would have the ability to unleash the beast with in. A lot of Harry's teaching, I am sure was uncharted water for Harry. I think this is where all of the people that do not believe Harry did the right thing, comes in. Harry was trying to do what he thought was right and we can see the problems of his thinking.
But yeah, why didn't he mention that Dex had a brother. He could have done a sort offf the cuff sort of thing, Like ' Heay Dex. your mom may have had another kid. I am not sure, but I saw something that made me believe she had another child, I think it was given up for adoption so I dont know anything about it', sort of dialog. Then let Dexter work it out from there. But he did not. I think it would have been hard for Harry to do it as then Dex would find out about Harry 'dating' his mom, and all of the other things that we know about. It may have seemed like the, 'old Let sleeping dogs ly', sort of thing was the best approach forhim. This is why I think Harry was afraid to let Dex know about Brian."