aaron candelario and shannon palmer were young and in love and engaged to be married. but their family was rocked by scandal. then murder. aaron's father was found at the crime scene dazed and confused. but his confusing story had police questioning his version of events. here's keith morrison with "tangled." >> you can't put words to that. it was very surreal. >> 911. where is your emergency? >> it's true, the old saying, when you marry someone, you marry their family, too. >> we need an ambulance. he looks like he's been shot. he said someone broke in last night. him and his wife both. >> not a bad thing to turn to mom or dad for advice and counsel. >> it's hard. sometimes you think maybe it didn't happen. but yet it really did. >> it's with their help and support, after all, that true love could deepen and grow, and last. >> i watched the crime scene shows on tv. i never, ever thought, it's going to be my life. >> yes, it really is all about family. the high desert opens up near pueblo, colorado, about 100 miles or so south of denver. among the highest of the nation

this is where shannon palmer's mom and dad set out to set out a good, safe, holy life for their daughters, far from the risks and temptation of the city. >> it was awesome. grow up with dogs everywhere, chickens, 40 acres to run around on. >> shannon and her sister kelsey went to school at home. their mother pam, devoutly jehovah's witness was their teacher. >> i loved it. i don't think i missed out on any aspect of my education. >> there were strict guidelines, of course, about beliefs, family, marriage, sex. there were no birthday or holiday celebrations, and they learned that members that commit adultery or divorce can be cast out, shunned. shannon and kelsey's dad jerry didn't share the faith but respected pam, though he was never a real fan of the home school thing. he wanted them to go to public school, but pam wouldn't have it. >> she always wanted us to be this tall, be her little girls. she genuinely loved us, we were her world. >> you were her reason for being? >> yes, oh yeah. >> when it was time for high school, pam relented. >> i think she realized you can't control an enviro