Without his defence having sight of the evidence and assuming that none of the other 5 have confessed anything I totally agree that he will not admit guilt.
He might try a Tabak and plead guilty to manslaughter nearer to the trial but as it stands....
Haha Wallace! Snap!
As to the other 5 (now 4), someone must have dobbed them in, so perhaps the rumour that it was SH is true.