Was richard also born on the island?
As it was metioned in a different blog, that people that were born on the island have a special 'skill'. well if that is true then, Richard must have been born on the island as doesnt seem to age.
or maybe richard is just unstuck in time and is free to appear where ever he wants. or maybe he just had an overdose of radiation or electro-magnetisum. im looking forward to season 6.