We have the opposite problem. No evidence makes the suspect look innocent! Everything points to violence. Her bone scan says, "this patient has suffered trauma." The only suspect has been fighting with his wife, he comes home late that night, she's asleep, and all of a sudden, she's face down on the floor with a bone bruise on her thigh, a broken back, damaged posterior ribs, and a neck injury. She is unconscious and has been in cardiac arrest long enough to cause severe brain damage. No natural cause for it, no heart attack. Just the timing is enough to convict him -- how did she have this 1 in 100,000,000 "collapse" right after he came home?
I ask all the visitors for ANY exculpatory explanation. There are only two reactions. They just tiptoe away without replying or they call me names.
They have to know the truth in their heart. But they cannot admit it. The truth undermines their whole ideological crusade. It undermines their religion. They can't face it. It's too much of an emotional shock.