Seven month old twin, baby Gammy, made headlines around the world when he was abandoned in Thailand by his Australian parents. His surrogate mother claimed his biological parents rejected him because he was born with Down Syndrome, taking home instead his healthy twin sister, Pipah. It made David and Wendy Farnell the most reviled couple in Australia. And then, as if their actions weren’t bad enough, the shocking news with the revelation David is a convicted child sex offender.