jason harper's life looked pretty perfect from the outside.ular high school teacher and coach, his wife, a stay at home mom, to three beautiful kids, and a close circle of loving friends. but things were not what they seemed, and when one member of this perfect family ended up dead, it was just the first of many shocks to their quiet seaside community. here's keith morrison with the house on battling. >> grief, like the ocean rolled into their lives and waves. ride the waves or sink, it seemed to say, write them again, and again. >> just a, you know, a shock to the heart. >> once, there were four fast friends, for tall men before it all went down with the waves to the -- >> it didn't have to end like this. >> no it didn't. and when it did, -- >> just felt like somebody watching your stomach very hard, and you want to cry. >> but could they do? right. it's what heart would have wanted after all. harp, jason harper, sports loving, outdoors loving california boy, with a childhood best friend named paul severns, who as they grew became tall paul.

. >> jason harper was 39 when she killed him. and now, julie harper will grow old behind bars, alone. >> that's all for this edition of dateline, i'm natalie morales, thank you for watching. >> it was very surreal. i was reeling from shock that my parents were gone. >> a beloved couple found murdered, their bodies discovered inside of their home along with a lifetime of valuable curiosities that they had collected. >> she was big into civil war, guns, coins, all kinds. >> was there any connection between the memorabilia and the murder? >> the question is who is going to benefit by these two deaths. >> jessica was the only child and she is the sole heir. >> sole heir. >> was there somebody else who stood to gain? >> investigators would discover a clue. >> by far the most important piece of evidence that was in the case. that would reveal a mind-blowing betrayal. >> somebody with a sick mind, that's all i know. >> welcome to dateline. it was a hobby that turned into a passion, collecting. and they were good at it. amassing a fortun