William J McCorkel is currently serving a 24 year prison sentence.
You may remember his informercial showing him, his pretty wife and his leer jet he got at auction. On his infomercials, he would tell the viewers how much money they could make at auctions. He said you could get products for pennies because nobody else ever showed up at most auctions. I think we all know that's a big lie! William J McCorkel would talk about all the times he went to auctions and got everything for rock bottom prices because only one other guy showed up and it was just the 2 of them doing all the bidding.
William J McCorkel also talked a lot about partnering with you and was famous for saying that you would get a chance to work with him and his whole staff. He claimed they'd all teach you the business inside and out. But the problem was that every time one of his customers or students tried to take him up on his offer to partner with him, he was never interested. And when his students and customers tried to take him up on the offer to come to his office and get some one on one time with William and the staff, his answer again was no.
William J McCorkel was not working with anyone like he promised. He only cared about raking in profits as fast as he could before his scam was up. Then one day it all started coming to a close when his business went under investigation.
During the investigation, William and his wife began destroying evidence of any wrong doing which led to the complete shut-down of his business and also brought him extra criminal charges.
Obviously I would never recommend anything the teachings of William J McCorkel. Not only was he a crook, but nobody ever even made any money from his books or courses. Gary Halbert may have been a little crooked, but at least his materials had a lot to offer and still do. See my review on Gary Halbert for more info on him.