Conversation so far:
How can we relate Bob Crane with the Trial?
At the 1994 trial, Bob Crane's son, Robert, testified that in the weeks before his father's death, Crane had repeatedly expressed a desire to sever his friendship with Carpenter.

Question: What was his role in the Trial?
Self-contained rewrite: What was Bob Crane's son, Robert Crane's role in the 1994 Trial?