I want a tutor familiar with the 1992 movie My Cousin Vinny to help with my questions.

I'm particularly interested in understanding the tactics used by Joe Pesci (as Vinny Gambini) in his cross-examination. Did he question the witness's credibility, highlight inconsistencies, and expose weaknesses in their testimony? Was his approach unconventional but effective?

2. What is this testimony's evidentiary value (the weight or significance of evidence)?

3. Why is the Brady case critical? The Brady doctrine established that prosecutors must fully disclose to the accused any exculpatory or impeaching evidence. Exculpatory evidence is evidence that could potentially exonerate the defendant.

Please cite your references.