https://www.pcgamer.com/this-alternate-ending-to-the-walking-dead-season-one-is-now-canon/

What do game developers do when they're desperately bored? If the developer in question is Sean Ainsworth, a designer, writer, and artist on Telltale releases including Tales from the Borderlands, Minecraft: Story Mode, and The Walking Dead, he makes an "alternate ending" to TWD Season One that we have decided is officially canon. 

The video, brought to our attention by former Telltale designer and director Jake Rodkin, was created during the final days of work on The Walking Dead Season One. "The last week of production on Season 1, it was just me and @Spainsy left waiting for any last minute bugs," Rodkin tweeted. "He made this during that stir crazy week."