Joker's explanation

Joker came to pick Michelle up after the show.
Only a few months away from giving birth, Joker wants to be there always.
He pulls into his spot and slams the door to find Chriso standing behind it.

Chriso: So Joker.....
What was the motive tonight?.....
I have done nothing to you.....
it is Robert and SadMan i want.....
And now that seems less likely.....
seen as its just me Zombie and Azagoth now.....
you have weakened our numbers......
So why did you end Darkness' Career???

Chriso stands with his arms crossed the image of Joker smashing Darkness with the chair running through his mind.

Joker smirks a bit as he thinks about what happened to Darkness today. The steel bat hitting him in the head repeatedly. He looks up at Chriso with no care on his face of his actions.

Joker: You think I care about this war? I don't give a damn which side wins it. All I know is that Darkness touched Michelle and tried to end her and my childs life. That sealed his fate. Now he can eat through a straw for the rest of his life for all I care. I don't care who it is that touches Michelle, they will all face the same result. You might as well tell Zombie that he's on the list as well. But also remember Chriso, I don't care if it is Zombie, Sad Man, Conrey, or whoever that touches her in a threatening manner. They all risk their very lives.

Joker continues to stare at Chriso with no care on his face.

Chriso looks confused.

I have not been around when Darkness threatened Michelle.....
or your child.....
but whats done is done.....
If you are going to continue to protect them......
then so be it.....
for what my minions do......
or what your ex friends do.....
I am NOT going to be held responsible.

Chriso walks off thinking about Joker's words.