That's stupid. Ghost didn't kill his son or take his son. What he's doing now by brainwashing Tariq makes more sense than popping his top in Breeze's apartment.
Ghost DID take his son, if you want to use Kanaan's likely logic. Ghost put Kanaan in prison, therefore preventing him from having a life with his son. When he gets out of prison, his son is working for "Uncle Ghost", Ghost has more influence over Shawn than his own father, and Shawn shows more loyalty to Ghost than he does to Kanaan. So while he may not have actually been the one to murder Shawn, I'm sure to a sociopath/psychopath like Kanaan and Jukebox they could feel justified saying Ghost took his son from him.