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this one is old. its from like 2004-2005? im not sure. i remember having listened to their album as well, only to find out mixing on the record was not this good. but yea what a skilled drummer.

his channel:
http://www.youtube.com/user/lordmarc0

ok so i did some more research and found out a bit of info on his rimshot technique. it appears Flo Mounier (Cryptopsy)'s instructional video is available in this regard. it is called "Extreme Metal Drumming 101". can be helpful for young metal drummers out there.
http://en.wikipedia.org/wiki/Gravity_roll