Death at the Front Door: Who Shot Heidi Firkus?

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(upbeat music) - There was a saying here in Minnesota. Minnesota nice. And that Minnesota nice only goes so far. And Heidi Fercus, she went all the way. She was genuine and she loved deep. - She definitely lived a life of love. That was the mark that she left. And that's hard to let go. (upbeat music) - This is a terrible, terrible incident. You know, we're hoping to find other physical evidence but that might help us lead us in a direction toward a suspect. - The morning of April 25th, 2010, it's 6.30 a.m. Heidi Fercus calls 911. - Someone's trying to break into my home. - She tells the state patrol dispatcher that someone is trying to break into her house and she's trying to give her address. - During 1994, many ha ha evidence. - While she's on the phone, you can hear a loud noise and the phone goes dead. - Well, I don't know where she went there. Six, five, one. - Approximately a minute later, Nicholas Fercus calls 911. Says that he and his wife have both been shined. (upbeat music) - Okay, are you in St. Paul's, sir? - St. Paul Fire paramedics took Nick out to the ambulance and transported him to Regent's Hospital. He had been shot in the leg. - Heidi was struck in the back as she was trying to flee towards the kitchen. It was a shotgun blast that killed her right away. The shotgun was laying inside the front door area. There's a little foyer. Nick gave a brief story. He heard somebody fiddling around with the door and that he then armed himself with a shotgun and that Nick and the intruder struggled over the shotgun. The responding officers went up and down the block, trying to talk to neighbors. - I was next door house sitting when the crime happened. Really, all I heard was kind of this agonizing yell of, you shot her, you shot me. - It never felt right. The story never made sense to me. He tells investigators that he grabbed a shotgun,
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A frantic 911 call captures the sound of a gunshot as a couple reports a break-in. How did the intruder disappear? "48 Hours" contributor Jamie Yuccas reports.