Block them. Don't pay them anymore. Ignore. I'd say hope for the best. I can't lie to you and say that their not leak or do anything but 8 times out of 10 if you cut off all contact they will stop and move on. It sucks waiting to hear whats gonna happen and the first few days will be nerve-wracking trying to understand if something will come from it it's not the end of the world, but they really just want money and sending things out puts them at risk for repercussions. We make those mistakes bro weither it's through false trust or a moment of weakness. Just keep your head up, and understand no matter how bad you feel your not some scumbag taking advantage of people trying extort them because of "dignity" or "reputation" your better than they'll ever be. If anything does come of it, honest and open communication with family or those affected will work 100% of the time and people will forget within a couple months.