Actor Alec Baldwin was distraught and shocked after fatally shooting a crew member on the set of his latest movie, asking repeatedly why he was given a “hot gun,” according to a new report.

The 63-year-old star broke down in tears as he was questioned by Santa Fe authorities following the tragic mishap on the set of Rust, a western he was producing and starring in, Showbiz 411 reported. A single shot from a prop gun Baldwin apparently did not know was loaded killed cinematographer Halyna Hutchins and wounded director Joel Souza.