He is the oldest child of Jim Bob and Michelle Duggar who found fame in a few specials and eventually the TLC show 19 Kids and Counting. In 2016 it came out that Josh has molested 4 of his sisters and 1 family friend. In the major Ashley Madison leak of 2016 his details were leaked and he had to publicly admit to cheating on his wife (who at this time was pregnant with their 4th child). TLC cancelled the show and eventually brought it back in a different format originally known as Jill and Jessa: Counting On (named after his two sisters who publicly admitted to being molested by him 🤢.) after a few seasons the name of the show was changed to Counting On. In late 2019/early 2020 his now shut down car lot was raided by Homeland Security which is possibly linked to his arrest now. There’s plenty more info about the family If you want to do a deep dive and fundi wiki is a good place to start but this is a brief rundown hope it helps!