The name of the fictional island is irregular. It should be 'Sainte Marie', not 'Saint Marie', because the name is feminine.
The police will typically conduct an initial interview of all the suspects/witnesses as a group. In real life the police would interview any witnesses separately so as to avoid any possible coordination of their stories.
Many episodes revolve around a "silenced" firearm not being heard in quite close proximity. In reality a suppressor will merely reduce the level from deafening to very loud and easily audible to anyone in the vicinity.