I think people are distorting the entire situation. Bottom line... someone is probably unlikely to make this up, possible, but unlikely. So there is a 95% chance that applicant X did forge that letter from the pharmacist. Sure, there's no proof. Asking for a hard copy of the letter, or some other form of hard evidence is completely ridiculous... how would the person have come into contact with it? That's just like asking a murder witness to come up with a video recording of the events they watched take place...
The OP asked for advice. Mine: like many people, I say, you could let it go b/c what goes around does come around, but you should make the guilt leave your conscience by calling the school and suggesting that although you didn't see it directly, applicant X did say that they submitted a forged LOR. Personally, I'd feel guilty because pharmacy is a competitive profession and there are others that are on that waiting list that would want the position, like others said.
Furthermore, like another person already said as well, the accused in this case ruined their own life and the OP can't blame themselves for others mistakes.
All in all, the OP probably decided that they just didn't want to deal with the politics surrounding such a situation. This is the same reason that a lot of criminal acts go unreported - a would be accuser does not want to throw their self onto the sword.
BTW, great point whoever it was that brought up the idea about slander - so many people forget how JD's with their 8.5" X 14" documents tend to dictate the way all professions function...
