Just came across this and recorded this on my second playthrough, and I figured it couldn’t be a glitch because that would be a very specific glitch, although when I loaded my game and tried restarting the chapter and doing the same thing he just acted like a normal scientist.
Oh no, it’s creepy Watson all over again
the vid won’t load for some reason
That’s awesome, reminds me of the Harmless Companion cube from gmod, I wanna try to recreate this. XD
He moves like Slender Man 
That’s… dear god, it IS Watson all over again.
This is amazing! I love this, I know it’s probably a glitch but it could be made into some awesome horror game! I wonder what would happen if you didn’t turn around for a longer time… How long would he follow you for? 
Can you try that?
Ooh ha ha ha! That was amazing. Creepy scientist glitch, but also the way you recorded it was brilliant. bravo!
Holy crap, that was scary.
OH GAWD, IT’S A WEEPING ANGEL!
Haha, I lol’d. Most likely just an odd NPC AI glitch though, considering the mod is still young. Still, very fitting considering the environment though, and makes you wonder if it’s not.
Dr. Slendatson…ohgodwhy