If the Sikhs has "leaned out" and risked saying more (e.g., "...this tragic MURDER...") they might have risked contaminating the potential pool of jurors.
The murderer's attorneys* would have rubbed their hands in glee if the Sikh community had been harsher in its statement.
(Yes, I realize: Barristers!)
Regards,
or “solicitor” (instead of lawyer)