Ah, I see. I didn't state it obvious enough. My fault, I still translate sentence from German into English only to make it not obvious enough who is who and - I could probably write a book about it.

Anyway:
The trine mate is Shockwave, our logic wonder.
He is ready to kill Screamer only to get some time with his mates. Why do you think he's so cold and distant? He pouts that he hasn't his two lover boys with him.