Mordekaiser Shadow and Fortune or: How I Learned to Stop Worrying and Kill Garen

So I was reading through all of the Shadow and Fortune entries today, and I finally got to Mordekaiser. I don't know if this has been posted or not already (I couldn't find it. I'm sure it has been though, somewhere), but after reading through it in entirety, I'm wondering if the knight that Mord killed here is just some nameless Demacian knight or if it's someone a little more well known

(I mean, if the knight that Mordekaiser killed ISN'T Garen, then it's some silly Garen copycat with Garen's kit. And if any old Demacian soldier can have Garen's kit, then what makes Garen so special as a champion? Does every Demacian soldier have this special armor that blocks damage? Sorry, ranting a bit. Back on the subject....)

The entry doesn't go into details of the appearance of the Knight that Mordekaiser kills and brings back as a ghost, but it does give just a couple of hints:

"The knight’s armor shone brightly for a second, then returned to its normal, mundane form, leaving him unharmed by Mordekaiser’s necromantic sorcery.

'Demacian steel,' sneered Mordekaiser. 'It will not save you.'"

"The knight spun away..."

So until it's confirmed otherwise, I'm going with Mord killed Garen, which would surely cause more of a stir than I'm seeing so far on the forums. I dunno.