as long as i am not part of his family what the hell does it matter it's a win-win, think about it whats the only way for fred to insure he ll survive today?
if you're the detective why the hell would you do what fred did? it only makes sense from a G perspective, at teh very least get teh real D to reveal himself or keep fooling the C's if the D is inactive.
it's cute to see fred overthinking this, he knows he ll get lynched in the first couple of days and since hes the lord he can be replaced regardless, so taking a few Cs down with him