Yes, it was Bishop Mc Kenna consecrated Bishop Slupski.
Fairly recently Bishop Mc Kenna felt compelled to announce this:
“I most sincerely regret having... consecrated Bishop Frank Slupski in spite of the fear that he might in turn, consecrate
Ryan Scott.” (Open Letter to Traditionalist Catholics; Oct. 3, 2010 Bishop Robert McKenna, OP.)
http://www.rosarychapel.net/files/Open-letter-100310.pdf There is this collateral information too:
http://www.rosarychapel.net/files/RyanScott-081510.pdf --------------------
Bishop McKenna is a sincere and humble Bishop. So sincere and humble that he trusts and gives to much credence to what advice certain people give him. Becasue of the mistakes he has made in the past he is afraid of his own shadow.
He is ready to meet his maker and does not want to add something negative to the list for his Judgment IMO.