The Murder of Katrina Montgomery

Girlfriend number two believes Nicasio was involved somehow, but did not kill Katrina. She wants him to make a deal to save his skin. He is angry that she had shared what had happened. The prosecutor is skeptical. You're in the wrong place the wrong time. What if I hope this wasn't evidence? Dispose of the evidence? Was that his way of saying he didn't kill her but did get rid of the body? It's an old cop trick. But it doesn't work.