I don't understand that either. If I shoot and kill someone, I can't tell the police/prosecutor "I don't want to talk about it" and go home. If he doesn't want to be interviewed, fine. Then he should be charged with murder, go to jail, and wait for his trial. He apparently doesn't have a reasonable explanation for what he did or HE'D EXPLAIN IT.
Actually, you do not have to say anything,People are innocent in the eyes of the law. The state has to prove its case.
Why is he not detained? I think most people would be