I am the one

A man in a beige jacket and black beanie stands in front of a rusty shipping container, holding a knife and making a series of exaggerated stabbing motions toward his own neck and head, then returns to a neutral stance. The scene cuts to him in a different location, a garage with a car's open hood, wearing a dirty hooded sweatshirt and holding a knife while standing in a pit, then cuts back to the original location where he repeats the stabbing motions before returning to a neutral pose.