What viable alternatives does George Wilson present to John Berry as they ponder how to prove Art's innocence?

In trying to prove Art Lee's innocence, George Wilson presents two possible alternatives to John. The first is to basically blackmail the Randalls with information. They can inform J.D. and Ev that they know that Karen was promiscuous and unstable, that Peter had performed abortions on Karen in the past, and that Ev had asked Art Lee to perform an abortion on her. The hope is that this information is enough to get the Randalls to drop the case against Art. If this approach does not work, the second alternative is to present all of this damaging information in court.