Actually, this would make an incredible plot for an episode of 'Law and Order' or whatever today's clone of that show is.

"But how could the murder weapon have Castleberry's fingerprints on it when we know he's been in a psychiatric hospital for the last 2 years?"

"Maybe he snuck out, and in his psychotic state killed someone. He wouldn't be criminally culpable, but the hospital might be."

"What, then he crossed the entire city undetected, killed the victim, and got back into the hospital all without being noticed? I don't buy it. And besides, he's so doped up on that Haldol stuff, he doesn't even know his own name. He was catatonic when saw him."