Nah, doesn't seem to be related. This person appears to actually be in Chicago and there is a video of them firing a shotgun and its definitely not him.http://www.youtube.com/user/Swordplay86
I don't know if this is Luka or not, but it came up during a search for the years 2010-2011. Videos titled "Death by Icepick" (1 year ago) and "Ice Pick Murder Practice", rattlesnake attacks, and Ted Bundy. The user is listed as in Canada.
P.S. I didn't watch the videos, as I have no idea what the content may be... maybe someone else can comment?