Also depends on what dirt said Johnson had (True or Not) and probably dumped on the Matrix when the lack of your deaths, and the proof of his (By way of time-based password-prevented data bomb) gets dumped onto the Black BBSes.
I'd suggest a Notoriety Hit at the very least. Even with evidence that you did it in "Self-Defense", it's still bad for business and "Evidence" can be doctored.
For a unique approach, well, Johnsons never work alone, they do have a logistics train behind them. Also, why did Mr. Johnson want to have you killed? Might have been good to ask him/her/it that before his head assplode. Might be a damned good reason why someone higher up the foodchain wants your group, or just one member of your group, dead. In addition, how did the other team know how to find you exactly, especially if your plan was far away from the Johnson and the hit team knew where you were, is there a mole in your own team? Questions and Paranoia!
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Or his brother/sister/father/mother/child/badass grandpa could come out of the woodwork, looking for vengeance. There's a lot of vindictive people out there, and you just killed blood.
