News What is a prop gun and how can it kill someone? How the Alec Baldwin tragedy was possible October 22, 2021 Sara M Moniuszko, USA TODAY Comments Off on What is a prop gun and how can it kill someone? How the Alec Baldwin tragedy was possible An incident with a prop gun discharged by Alec Baldwin killed cinematographer Halyna Hutchins and injured director Joel Souza. What is a prop gun?