He's probably lying, these accounts might be cracked. How do I know?
I JUST bought the cracker myself today, and I found out that the champions on his screenshots are formatted the same way as my checker is. Therefore, they look similar so, I'm automatically assuming they are the same program.
The cracker :
Notice that in his screenshot that there are a few champions at the very first line. Now look at my screen shot. A few on the first line also, coincidence? I think not.
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He might just be using the checker part of the program to get his information quickly, but I wouldn't take my chances. They could still be cracked.