Hi, DonutZ!
Welcome to the board! I am so sorry that your introduction to the board has occurred while you are under such duress...
As 3rdGen and Rebel8 said, if the elder actually "hacked" your wife's FaceBook account, then they should be held liable for their [potentially illegal] actions...
However, there is another possibility...
It is possible [I HATE mentioning this, but...] that your wife said too much to someone - an elder, or someone who went running to an elder and blabbed all about you and your wife's pre-marital activities...
And the whole "hacked my FaceBook account" might be a cover-up...
On the other hand, if you can show that they DEFINITELY hacked her account, then THEY are probably looking at criminal charges.
Keep track of any and all evidence, and I hope that you are successful in getting the elders and their "kangaroo court" to back off...
Zid the She-Devil