JackRich is a high stakes NLHE specialist who lives in Scotland and doesn't want his name to be revealed. He seems to have come out of nowhere and jumped into the $25/$50 and $50/$100 NLHE games on PokerStars but he has been around for a few years. He likes to play heads-up but also plays in ring games when they are running.
He started playing poker in 2007 making several small deposits before hitting a nice run and moving up from SnGs to play small stakes cash games. He quickly rose to $25/$50 in less than a year and a half. He went on a massive heater reaching a bankroll of mid six figures before the variance hit in and he lost over 50% of his roll. He grinded up from mid-stakes yet again and has done well since. He has worked on his game incredibly hard focusing on a mathematical/game theory approach and getting coaching to help him with this.
He has been around on the Euro sites for some time under different screen names, playing on iPoker, Party, etc. He has done extremely well there winning over $500k but has started to play more on Stars and Full Tilt.