Cops can lie to you. As cops, they should have known that.
Were they read their Miranda rights?
They should have known that, but then again, who in their right mind would have thought they would all be charged with manslaughter or worse?
It was a crazy time in that city. I can certainly see why they would have been under duress. Still, facts should not be different. At the same time, they have the same rights as the rest of us. It should not have been a set up.