That "scum" as you call him, is probably one of the few restraining forces on this planet when it comes to what to do about the clans. He offered you claners amnisty, and the results of that damaged what he could do after that. He has people who he has to report to and when they say "this will be done" he has very little choice but to do it.
If he dies, do you think Omni-Prime is just going to shrug and say "well he was a problem child for us, lets move on." No, they are going to see that this attack on their company is delt with.