Is it simply because he thought he was a liability? Hooking up with D’s baby momma and then what he had done to him in the prison library without consulting Avon about it seemed as personal as it gets.
I remember first watching the show and hoping D’Angelo would be the one to bring Stringer down but real life don’t work that way I suppose.
I don’t think he hated him. He hooked up with D’s girl because she’s hot and D is in prison for a long time, plus he is paying for her house/car/etc. nothing personal about it, he would have done that to anyone except maybe Avon. And he had him killed because he nearly ratted once, then decided to be loyal to Avon and all of them, but then he started to hate Avon and said he wanted nothing to do with them. That led Stringer to conclude that D would end up flipping, it was just a matter of time. He didn’t consult Avon because he didn’t think Avon would be ok with it, as D is his nephew. So to protect them all and the business he had him killed in a way that Avon wouldn’t know it was him. I think the killing was all business, and having sex with D’s girl was just because he was attracted to her, it wasn’t a way to screw D over or anything like that.
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