Alec Baldwin's Fatal 'Rust' Shooting: Investigation Into Who May Have Been Responsible Continues

Stunning new details have emerged regarding Alec Baldwin's accidental fatal shooting on the set of "Rust." Authorities are continuing to try to determine who may be responsible for the tragedy, which took the life of cinematographer Halyna Hutchins and wounded director Joel Souza. Access Hollywood takes a look at some of the key players in the harrowing incident.