Facebook's Sandberg Remembers Late Husband

Facebook's Sheryl Sandberg said she was devastated by the sudden death of her husband Tuesday but lucky to have known him and shared her life with him.

U.S. tech executive David Goldberg apparently died after falling on a treadmill and striking his head at an upscale resort in Mexico.

It was a terribly tragic blow for one of America's best known business executives, famous for her efforts to encourage women's empowerment.

Goldberg, 47, was the chief executive of online polling firm SurveyMonkey. He died suddenly Friday, according to his brother, who did not give a cause of death.

But Mexican officials on Monday confirmed he died in hospital after a workout accident during a family trip to a Pacific coast resort in Punta Mita, in Nayarit state.

In a post on Facebook Tuesday, Sandberg paid tribute to her late husband.

"Dave and I did not get nearly enough time together. But as heartbroken as I am today, I am equally grateful. Even in these last few days of completely unexpected hell –- the darkest and saddest moments of my life –- I know how lucky I have been," she wrote.

"If the day I walked down that aisle with Dave someone had told me that this would happen –- that he would be taken from us all in just 11 years –- I would still have walked down that aisle," she added.

"As we put the love of my life to rest today, we buried only his body. His spirit, his soul, his amazing ability to give is still with it," Sandberg wrote.

Aside from her work at tech firms, Sandberg is the author of "Lean In", a best-selling memoir presented as a modern feminist manifesto that urges women to work to succeed in juggling their careers and family life.

President Barack Obama remembered Goldberg as a leader who always tried to empower others.

"He was generous and kind with everybody, and cared less about the limelight than making sure that the people he worked with and loved succeeded in whatever they did," Obama tweeted earlier this week.