As I see it, the video brings the timeline into view.
I never believed he ran away. That Google search, and the fact that not a single person saw him, or camera captured him, made that extremely unlikely.
I couldn’t figure out what day he disappeared. It all came down to when he was last seen alive. That meant something could have happened from Saturday into Monday.
With this video though, we have solid evidence he was still alive on Monday morning.
If he returns from that drive, then nothing makes sense. He still can’t have run away, because of the problems I already addressed. There’s no time for TS to do anything nefarious, as any trips would be caught on camera and time was running out.
The video explains that, and the dad’s reaction puts an exclamation point on it.