I said, Im here; Im waiting for you; Ill take care of you.

Just dont… dont die.

Mac died of complications due to pneumonia on Aug. 8, 2008.

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Credit: OWN

He had long suffered sarcoidosis, a chronic condition involving organ inflammation.

McCullough then had to leave the hospital room, and was informed later that her husband had died.

And I just, What am I going to do?,' McCullough remembered her reaction.

Its like, what is my reasoning for being here now?

What is my purpose?

But McCullough did find a purpose, and that was continuing the work of her late husbands sarcoidosis foundation.

Watch McCulloughs tearful recounting below.

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