Did you PM Fivestar4everMVP to know he is not the one that locked the thread before asking this question?
No, but, now that you say, I think I should have.
There is no point in doing that again. If it was about a year back, yes, to know who locked a topic, you would just have to send the OP a message to know if he or she was the one that did it or if it was a moderator, but after PowerGlove
provided a patch to fix that, it's very much easier now without stress to determine who locked a thread by just right-clicking on the padlock symbol if you are using a PC, and for mobile, just hold that symbol for some seconds, and it will show you who locked the thread. As for the thread in question, it was locked by a moderator.
Thanks, just learned something new, and, you don't have to hover/click, it's even simpler than that as shown in thread linked — if it's 2/3 documents behind padlock, the topic was locked by mod, if it's one, topic was locked by op.
...and thread in question is unlocked.