Ask what was heard, who from, who else was told, then characterize what they heard as defamation, slander, gossip and deny everything. They won't have accusers there but if they do talk to your accusers the same way but out of the presence of JC. If JC starts and no accusers are there tell elders you must know who said what, to whom, then ask if they would be willing to testify in court if you decide to bring a defamation suit against your accusers.
Once you get legal with them they will be very hesitant to proceed. Tell them you would like to know their policy limits for their insurance that protects them from legal action for illegal acts they may commit as a result of JC.
And by all means RECORD THAT JC! Then put it on YouTube!