1) Never heard of him, and I like to think I'm pretty plugged into the REI / finance world.
2) Everything you need to know is available for free on podcast, YouTube, books at your library, the BP forums, and local REI meetups.
3) I can think of 2 ways to invest with none of your own money. You can be good enough at REI that people will give you their money to invest with them giving you a cut of the profits, or wholesaling where you find a buyer to assume your contract before closing. When you're new with no experience, It will be extremely hard to find anyone that will go into business with you if you have no skin in the game, and you don't know enough buyers and sellers to be an efficient wholesaler.
There's no "secret" or cheat code to wealth accumulation. Make and save as much money as you can, spend as little as you can / avoid consumer debt, and invest in the highest yielding investments you can. If you do this for enough years in a row you should be financially secure and everyone will be jealous how lucky you are! Being humble, having a positive attitude, meeting people, and constantly learning new things will make the process even faster.