he was a drug dealer who went to prison because one of his subordinates, (Ghost, the main character in the series, set him up years ago because he was a danger to those around him
anyway, his son ends up being Ghost's driver, and the young man is a good guy despite his influences. once Kaanan gets out of prison, after finding out that his son isn't as cold as him, he kills him because he feels that he's too soft
50 probably wishes he could do that to his son in real life. "Tryna call mama?"