would create like an infinity pool of water and that's where she's do her business. >> wow. >> for ann, animals have long been important companions, says her brother ken patton. >> she developed that bond with animals at a very early age. >> ken and ann grew up in rio de janeiro. what was your sister like as a young girl and teenager? >> very popular in school. she hung out with the cool crowd definitely. >> outgoing and popular, but something was not quite right. >> when i was in my preteens, 10, 12, i knew something was weird. something was different. >> weird and different turned out to be early signs of what would later become serious mental illness. >> i didn't have any suicide attempts or anything like that until my 20s. that's when it really hit.