by then, they had a third child, jenelle. their days were filled with shuttling kids to school and daycare, and raising funds for their next overseas mission. life with three young kids was busy, hectic, normal. but then came valentine's day, 2013. when nathan pulled into their driveway mid afternoon and discovered something terribly wrong. >> i could see that the windowpane was broken. glass was on the ground. at that point, i began to put things together that someone had broken into the home. and at that point i called the police, called 9-1-1. >> 9-1-1. where is the emergency? >> ah, we've got a break. in. >> a daring burglary in the middle of the day. that would rob this family of everything. coming up -- there would be no more cards, candies or flowers this valentine's day. no one can find denise. >> she hadn't answered her phone calls. she hadn't answered her text messages. >> and what police find is terrifying. >> everything stopped. i just kept looking at my daughter. my world had just been shattered. and i have to te