The telephone ding dong from the beginning of the video reminded me of this video which also started with a ding dong, though a different one. Must be Brazil again.
The video shows an execution of a young man who’s loosely tied to a pole inside some shack. He squeals in a high pitch voice after taking the first shot, but the consequent headshots quickly silence him and finish him off.
Props to Best Gore member @momox for the video: