Crew members on the set of “Rust” used guns with live ammunition and engaged in a pastime called “plinking” hours before Halyna Hutchins was killed, founder and CEO of The Wrap, Sharon Waxman, told CNN’s Don Lemon Monday night, citing information from an individual with knowledge of the set.

One of the guns used was later handed to actor Alec Baldwin, who fired the shot that killed Hutchins, 42, and injured director Joel Souza, The Wrap reported.

“There’s this pastime that crew members sometimes do, it’s called ‘plinking,’ and they go out into the rural areas and they shoot at beer cans. This is with live ammunition. We learned that this happened the morning of the day that Halyna Hutchins was killed,” Waxman said.

Waxman told CNN that “plinking” is common when there’s downtime during a shoot.