I watched the arrest bodycam video of Karmelo Anthony today. Something that stood out to me was his demeanor when speaking with the male cop vs. the female cop. With the male cop he was calm, collected, "yes sir", "no sir". With the female cop he was almost sobbing like a little kid, says something along the lines of "he put his hands on me". Combine that with his seemingly perpetual woe is me expression. Makes me think of kicked dog syndrome. A dog will take a lot of abuse, and then one day it says "no more". So maybe he was a victim of abuse. If so I would expect it to be the father. Does that excuse what he did, absolutely not, but it would explain it.
Either that or he is a true cold blooded sociopath.