 Now to the latest on the Alec Baldwin movie set shooting death trial in New Mexico. A lawyer for Baldwin grilled a crime scene tech today over how live ammunition ended up in the actor's gun and killed the cinematographer Helena Hutchins. While that trial goes on, we're going to explore weapons on movie sets a little bit here as we speak with ABC News crime and terrorism analyst Brad Garrett, who joined us earlier. There is a well-known movie from 1995 called Heat with Al Pacino and Robert De Niro in a scene in that film.