Who produced the video? I would imagine it wasn't Avicii himself, so maybe it had nothing to do with him. I saw the documentary that was made about him, following him on tour etc, I can't imagine he would have bothered too much about the videos as he was so engrossed in the music production, though I may be wrong, but what I do know is that he was a very stressed young man that suffered with anxiety quite badly and had a severe alcohol problem. Anxiety can make you feel trapped, trapped people want to escape, alcohol makes you do stupid shit. Maybe it was just a suicide. Maybe the lead to follow is whomever made the video?