The purpose of Randy

[LiamKerrington]

The whole Randy thing has been what's been puzzling to me more than the other holes needing to be filled. I thought I read on the wiki that he was mentioned to be at CJ's tower when he was alive or maybe it was the water plant? But my thought is could he have been that slow turner that Tanya kept referring to that bit her and in that case, could he have went after Tanya to finish the job or take her back in case there is a connection with that. But it still doesn't explain his connection to Michael. That's why been bugging me the most? Could they be family or comrades in the army or something completely different. Will we even see him and learn the truth in season 4?

Tanya also told that she euthanized the slow turner.

<theory>
Randy and friends were at the waterworks. They encounter the Behemoth, and possibly some of his friends but he may have been a loner. Behemoth starts thrashing people. Randy, and anybody still left, are hiding out in the waterworks while Big Boy is stalking them.

Enter our heroes at the most inopportune time. Zombie Kong hears/see/smells Michael and Co and goes to give them what for. Michael does his thing. He either finds Randy or Randy finds him. The are making an escape from the waterworks and get out of the Big Guy's reach. Only to run into a pack of Zeds drawn by the noise. Randy buys time for Michael and is turned for his troubles (unbeknownst to Sgt. Cross)
</theory>

That's pretty much what I think as well.

All the best!
Liam