Amy King says she learned about the accusations against her cousin from the news, “like the rest of the world” — and she was furious.
Duggar's conservative Christian family was embroiled in scandal after their TLC series brought them fame.
Due out June 2, “Shiny Happy People: Duggar Family Secrets” features emotional testimony from Jill Duggar Dillard and others.
"I hope that every single second he’s there feels like an eternity," Amy Duggar King said in an Instagram video.
A recently resurfaced video from 2008 shows Josh Duggar making an incest joke about his younger siblings.
The former "19 Kids And Counting" star was convicted of receiving and possessing child pornography.
"I never imagined I’d be giving this family the platform to become such an influential force."
Amy King told Anna Duggar: “You’re faced with an impossible decision and you’re being surrounded by the wrong kind of support.”
Four of his sisters accused officials of invading their privacy by releasing records from a police investigation that concluded the former reality television star fondled them.
A federal jury in Arkansas has convicted former reality TV star Josh Duggar of downloading and possessing child pornography.