If facing the NCAA, who doesn't have subpoena power, clam up, pay everybody in green cash (small bills), stonewall, and close ranks, lawyer up, and just mark time. Eventually, the press will lose interest, and it will essentially go away.
If facing an internal investigation, also lacking subpoena power, see above.
If facing anyone who does have subpoena power, throw the lowest intern under the bus, claim Snow White purity for everybody else, and say their all in belief in The Fambly led them to place too much trust in an unworthy former member, now excommunicated. Give the poor schmuck Derrick Ramsey's contact information.
Regardless of what actually happened, if anything, I'll be really surprised if anything comes of this.