Apparently the uncle had a press conference and some national news organizations are reporting on it including NBC Sports.

http://m.nbcsports.com/content/uncle...-john-calipari


This article from an SEC site is the most comprehensive that I found

http://mrsec.com/2014/06/new-claim-e...lipari-scheme/

Highlights:

"Before all the non-UK fans rejoice too much, file away the fact that the uncle — Stephen Saine — is a convicted drug dealer who is reportedly trying to publish a book about the big turnaround he’s made in his life. Saine is now a pastor. Also know that current Memphis coach Josh Pastner inherited Henderson-Niles for one season and he said last week that he had no knowledge of the allegations nor did he believe them. Henderson-Niles told The Memphis Commercial Appeal this weekend that he has “no involvement” in the allegations made by his uncle."

According to LocalMemphis.com, the memo sent by Saine to the NCAA says the following:

“I share this not to bring dishonor to the University of Memphis or the men’s basketball program, but to: 1) do the right thing and 2) help make sure what happened then is no longer prevalent not only at the UofM but in college athletics in general.

When Jartavious Pierre Henderson-Niles played basketball at the UofM he did so with a pay-for-play arrangement with the UofM men’s basketball coaching staff.

I received regular payments from one of John Calipari’s assistant coaches (Derek Kellogg) starting Pierre’s senior year of high school through his junior year at the University of Memphis.

This is an issue I would have addressed with the UofM and members of their former coaching staff but as you can imagine, I felt it would have falled on deaf ears.”

I don't know if Cal actually arranged payments to a convicted drug dealer known as "Pink Chevy" and I doubt we'll ever see proof but I realy hope so.