Is there a chance Alec Baldwin had an affair or was attempting to have an affair with his female cinematographer?
Shooting aside, Alec probably has some texts and emails on his phone that would make Jon Gruden blush.
Much higher than the gun going off without anyone pulling the trigger.
I would not rule anything out.
Columbo would be looking for letters, notes....something in writing....A birthday card? Christmas Card? something that says they (Alec and victim) were meeting outside the RUST set.
I think he gave it a shot
Or pissed off at her, bad mouthing her to someone....
Motive...?
During his interview on the road he said he took her to dinner the first day on the set. Take it from there!