I blame Franklin and Leon

I'm in the middle of S4 E5 and I feel like both Franklin and Leon are to blame for the death of Tianna and the war between Skully and Manboy.

First off, Skully and Manboy are basically family. Franklin should've never gotten involved just off that alone. He should've laid low and just let it play out. Because you did all that just for Manboy to walk into Skully's home and apologize and boom just like that, war over.

Second, Leon shooting into the car - yes he was protecting himself but he should've never been there in the first place. He should've left it alone and focused on finding a new plug, not hiring a PI.

Franklin was always frustrated with Leon and Kevin for acting recklessly and off emotion, but some of Franklin's moves don't make sense. Especially at this point where you've been in the game for a few years. His moves should be smarter and more calculated.

Now he's stuck in between giving up his best friend or becoming a target. Mind you Skully already wants to kill him.