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Missing Florida woman was on phone with husband, as building came crumbling down

Cassondra “Cassie” Billedeau-Stratton had heard her building's swimming pool collapse before making the frantic call.

A woman, among those missing from the Champlain Towers South collapse, was on the phone with her husband moments after an outdoor swimming pool caved and then the line went dead.

Cassondra Strattoncassondranyc/Instagram

Rescuers did not immediately find Cassondra “Cassie” Billedeau-Stratton, 40, who was staying on the fourth floor of the doomed Surfside, Florida condo complex, when she frantically called her husband and described the massive sink hole beneath their fourth-floor unit that had once been the building's swimming pool.

Stratton last saw his wife, a native of Kenner, Louisiana, on Monday of last week when he left south Florida for a business trip to Washington, D.C.

"I was in Washington, on the phone with her when the whole thing happened, 1:30 a.m.," Stratton told NBC News on Monday.

Stratton said he's pinning his hopes on search-and-rescue teams from Israel, as they dig through rubble.

"Nothing new, they're just working hard, digging more," Stratton said of the on-going search efforts on Monday afternoon. "These Israeli guys are like excavation commandos and they're doing their thing."

He added: "They got a lot of people out there digging and scraping and all of that."

Stratton is a prominent Democratic political consultant and the couple is based in Colorado but they spent much of the pandemic quarantined at their Surfside condo.

“She was the most fun, vivacious person you could ever imagine,” Stratton told the Miami Herald. “She was full of life, we were always doing something. There are so many interesting places to go in Miami and we took it all in.”

Friends and relatives of the missing Louisiana native said they're still holding hope despite the days that have gone by.

"She is still missing in the rubble of the collapsed building on Florida. Please send her all the love, positive energy, warrior energy, survival and fighting energy you can muster," friend Rashonda Gregory wrote on her Facebook page on Friday night. "I’m still holding out hope that she is alive in there."

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This story originally appeared on NBCNews.com.