To be honest I've never heard that before. I can assure you I'm not a shit bag and I wasn't kicked out. You probably won't believe me, but I did my time and left with a good record.
He could've had inspiration from other works with said themes.
I don't want to think of plagiarism either. It makes me sad.
If you develop clairvoyance, let me know, I want to win the lottery.