The voice clip of Tim used in the video is from a video that hasn't been discussed yet, where he filmed a man raping a pitbull. Now let's meet him!
Darrin Norman Stern / rottluver / @Rottluver208

There are two videos of this man with a dog. The first involves him jacking it off, while the cameraman speaks, it is unmistakably Tim's voice (see page 5)
The second is of the man fingering the dog in it's anus.
Because I believe these should exist somewhere as evidence, here they are:
There was a "rottluver" posting prolifically on the defunct elitezoo / zetaforums:
https://archive.ph/M1Dzn
All of the above are responses to videos Tim produced.
The video itself was posted sometime before July 2007
Darrin lived in southwest Washington until January 2007
Tim and rottluver must've been close, way later in 2015 he reposted some of his pictures, where he ejaculates on a dog in a shelter, to Imgur.
He is also responsible for a series of videos with a dog named 'Gunner'.
So, how can we prove who this is?
Darrin Stern has been one of the only people to use the name "rottluver"
https://archive.ph/lJQsL

Facebook:
https://ghostarchive.org/archive/1jDu8
Let's compare his face
https://ghostarchive.org/archive/JFOwb
Lastly, here are some tweets where he uses a very peculiar phrase in reply to a specific topic.
"DP for CM" I wonder what that means?
19656 Nanticoke Ave
Caldwell ID 83605
(425) 314-4568