Carmen Best, a retired Seattle Police Chief, discusses the comprehensive response required from local law enforcement during school shootings. She emphasizes the 'all hands on deck' approach, where multiple agencies collaborate to manage the situation and gather information. The investigation process involves identifying the shooter, understanding their background, and determining if there were any warning signs. Best highlights the emotional impact on officers, many of whom have personal connections to the community. The conversation also touches on the importance of exploring all possible motives, including religious affiliations, as seen in a recent case in Oroville, California. The investigation aims to leave no stone unturned, interviewing family and friends to piece together the events leading to the tragedy.