The convert that betrayed God and the Torah

the Jewish world is shocked by a story that has been in the media for the last several weeks of this couple of people that converted to Judaism something around 5 years ago or so and decided that this is for them and they lived within the community I believe it was satmer and then took on the least it seemed like took on the burden of Torah by learning a lot of Torah impressing people with the amount of Torah that they were supposedly learning and then one day they just left the community went back to the place that they went to not only physically but spiritually a place of Tuma of impurity and now publishing a book about Witchcraft and Tarot cards and black magic and all types of things but with the appearance that this is good and this is the truth because they have now spent enough time in Judaism and have discovered the truth is in the idolatry that they're in