Its just not a good thing to speculate/spread rumors about people's deaths. It might be completely unrelated. He left a note, maybe they will show us what he wrote. Maybe you are correct, maybe not, until then lets not spread rumors.
I was going to give this a 8.8/10 because I thought there was some filler throughout the drama making it a bit too slow sometimes (for that perfect 10/10), but the last episode, especially when they started playing the song from "THE CLASSIC (2003)", and all the scenes following it - I just had to change my final rating to 10/10. Goosebumps, wonderful stuff.
People will hate me for this but I watched 3 eps and can't get into it because of the female lead. Everything else is a 10/10 production wise. Will keep watching!