Police Press conference on Alec Baldwin film set death

The transcript discusses the investigation into an incident involving Alec Baldwin firing a weapon on set. It details the collection of evidence, including firearms and shell casings, and emphasizes the importance of a thorough investigation for prosecutorial review. The session concludes with a Q&A addressing the recovery of a live round and witness interviews.

Why is a complete and thorough investigation critical to the DA review?

What was recovered based on the witness interviews?