That part of the story is sensationalized. The only flowery fanciful description, keeps being repeated as if it was true but its hearsay. Grunwald was lured, most likely thought he was going to help his friends ' become changed men, turn over new leaf' maybe they asked him over to pray. The weed is a red herring, a hot button trap of excuse that caught a few readers so far because of their own fervent prejuduces.