ghost's whole m.o. is doing shyt discreetly so no one is coming down on him. you don't bring heat on yourself unnecessarily. if you feel she's that close, you don't kill her, you kill tommy. only through him can all this shyt be linked to you.Worry about the punishment for killing a US attorney when you're a Drug kingpin with multiple bodies on you brehs...
Ghost a fukking drug kingpin...The government is coming down hard on his ass whether she dead or alive...Nothing changes as far as they are concerned...The situation here is simple, you want to protect your identity so that you are never put in that position and whose closer to figuring you out? Angela or the US government that fired her?
She has a partial sketch of your right hand man, Nomar's phone and she's talking to Ruiz daughter who can complete it...Tommy gets ID your whole operation is fukked...He already thinks Ghost and Angela are setting him up...He's going to stay quiet and take the fall doing a life bid so you two can run off to Miami ?
This isn't rocket science dog...You let her walk and figure shyt out you run a higher risk of getting caught...Life in prison ain't better than death row...
so you kill her, then what you kill the members of the task force (who will look at the evidence she was gathering that got her killed) that's assembled to look for this US attorney killing ghost person. so instead of lawyers and the DEA doing this slow paper trail investigation because they are trying to build a case. they just straight up offer a million dollar or more cash reward for anyone who knows the whereabouts of a US attorney killing drug dealer that goes by ghost (and mention that he's a person of interest in the murders of rolla and nomar and any other drug related killings they can pin on him), so now all those black and rican bangers on the street who know him as ghost suddenly have incentive to turn him in quick for that million if the money wasn't enough.