Your dad gave me these security tapes after the huilding burned ...
PI: Your dad gave me these security tapes after the huilding burned down and asked me to lock them away. This one is from 8 p.m. the night of the fire.
Chuck: What's on it?
PI: Bart. having an argument with a woman. Avery Thorpe. Then Avery goes into the building and Bart hurries away.
Chuck: Okay. So?
PI: Moments later the building goes up in flames. And Avery Thorpe is never heard from again.