That's just hearsay; you've no proof. Below is the REAL Mike Mentzer, the man who awed nations with his Herculean proportions.
Proof!, everyone knew Mike was A Meth Head who lost the plot, arrested many times, spent several times institutionalised! No proof needed, it was common knowledge! Just because there isn't any Jason Russell Youtube footage, doesn't mean it didn't happen - Amphetamines long term will fuck you up, that's for sure!