Sisters survive deadly attack at Utah cabin

"48 Hours" Live to Tell: Victims of home invasion three days before Christmas share their journey to hell and back

Linae Tiede: It felt like slow motion and quick, all at once. ...I can remember the screams and Grams falling off the...stool. And my mom reaching over her chest, "I'd been shot."

I started to think, plan ahead. I knew that there was a car. And I knew my dad left the car keys underneath the mat. ...I knew that if we got these men out of the cabin and into the car that my dad and my sister would be safe.

As the noise of the snowmobiles became closer, the man in the gray sweatshirt grabbed me from behind. Around the neck. Put his gun to my back.

Trish Tiede: Dad and I arrived at the cabin...As soon as we got off the snowmobiles, a man jumped out from the garage with a full ski mask on and a gun and demanded that we come inside right away.

"Don't move, don't move. Don't move, don't do anything."

Linae Tiede: My dad could see tears in my eyes. And it was an unspoken communication. And he knew, at that point, that something awful had happened to Mom and Grams.

The men asked my dad if he had any money. He reached into his pockets and pulled out what he had. And threw it down to the ground.

The man in the coke-bottle glasses was instructed by the other to shoot my dad. He pulled back the hammer. I heard it. And he refused to fire.

Trish Tiede: So then the other man restraining my sister pulled his gun out, pointed it at my dad... pulled the trigger. Once, click, no fire. Twice, click, no fire. ...And then, a third one, when it off, that blast was-- it was so close, I could feel it.

Linae Tiede: I had no doubt, in my mind, that he was dead. Just like Mom and Grams. I was terrified to think that the trauma would not stop. It kept going [sighs].

It didn't make any sense to me. I had no idea what was happening or why.

These men that were in the cabin. I knew that they had been there for a while. There was food eaten, there was Christmas presents open, it wasn't just that we walked in and startled them or scared them. They had actually...waited for our family to return home.

Their plan was to destroy their evidence, burn it to the ground.

There was always gas cans available. Full of gas. For the snowmobiles.

Trish Tiede: They immediately got busy doing things.

Linae Tiede: They poured gas everywhere and set the cabin on fire.

I can remember hearing the smoke alarms going off as the fire was already blazing in the cabin.

Trish Tiede: There was a sense of urgency to get out of there. They began telling us we got to hurry and load the snowmobiles and get out of here.

I had this feeling inside of me that we needed to listen and do what they said until the moment came to where Linae and I could make our escape.

Linae Tiede: My sister and I drove these awful men on the snowmobiles out of the cabin. ...I drove one man behind me and my sister drove the other man behind her.

Trish Tiede: I had all kinds of different plans of -- of how to wreck the snowmobile, how to throw him off into a tree, how to get rid of him. But all I could think of is I couldn't leave my sister.

Linae Tiede: I can remember wanting to stay close enough that I could still see my sister, that I...felt a sense of security, knowing that she was still -- still there.

Trish Tiede: There was no one to help us. There was nowhere to go - we were in the middle of the mountains on snowmobiles.

Linae Tiede: We headed up to the main gate. And saw my Uncle Randy.

Randy Zorn | Uncle: I seen the snowmobiles come up the trail, two snowmobiles, and I go, "Look, there are my nieces! ...I knew it was the girls with two people on the back. And I go, wow! They got boyfriends!"

I walked over there and tried to greet 'em ... and say hi. And I wave my hands in there and-- they just drove by me and I go hmmm...that's weird. ...that's not my nieces. They don't do that to me.

Trish Tiede: I saw my uncle. My uncle had pulled up and he waved at us, we just kinda looked at him and turned back. And the men said, "Who was that?" "Somebody that must live up here being nice."

I knew his life could be in danger. I knew if these men knew Randy was our uncle there that they would have killed him.