A parent’s worse nightmare. It’s hard to imagine what exactly Sandra and Frank Rzucek have been going through over the past four months ever since their pregnant daughter, Colorado native Shanann Watts and her two young daughters were murdered by Shanann’s husband, Chris Watts. Now, in their first-ever interview on ABC’s 20/20, Sandra and Frank are finally speaking out about how they’re coping with life after the brutal killings — and Sandra said not a day goes by that she doesn’t think of her daughter and her grandkids.

“You know someone asked me a question one day, ‘Sandy how are you standing?’ Well, I have a fight to fight. That’s my daughter. I gave her life, and I’m still going to fight for her… you know?” Sandra explained to ABC News on 20/20, via People.

“Those grandchildren… they were my everything, they were my only grandchildren in the whole world,” Sandra said, holding back tears.

Chris Watts mistress Amber Frey

Sandra and Franks said they loved Chris as a son-in-law, especially because of the way he cared for their daughter Shanann, who battled with Lupus. They explained that Chris and Shanann met on Facebook and married two years later. Chris and Shanann had a seemingly happy marriage, and Chris had never shown any signs that hinted that he was capable of committing such a horrific crime.

But Sandra said that in the weeks leading up to the murders, Shanann confided in her that something changed in her relationship with Chris. It would later be revealed that Chris was having an affair for two months before the murders, according to the Denver Post.

“She just couldn’t understand why he was so cold,” Sandra told ABC News. “Just cold as ice and not responding and replying I just said give him space, but little did we know.”

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