Mike, Pam Coulter, who worked with Clarissa at both WTOP in Washington and at ABC Radio News in New York, has been pretty tenacious on this, and finally was able to provide some details. This is what she posted on FB at 5:05p on Tuesday, Dec. 23
"Friends of Clarissa- after speaking to her friend and neighbor in Virginia, I found out Clarissa died Nov. 28th after a 2 year battle with breast cancer. She apparently was tough and independent until the end. She is a model of strength for all of us. And perhaps one of her legacies will be reminding all of us how precious our friends are."
Her remains are currently at a funeral home in Northern Virginia. No services have been held, pending action by the "curator" of her estate (no executor, by VA law, because she left no immediate, surviving family) who will act on her wishes.
There's been some talk about some kind of Memorial Service here in the DC area after the first of the year, but nothing definite.
I also offer this comment that appeared on FB the other day from another one of her colleagues, Gil Gross. "I''m beginning to think we may not learn what happened, and given Clarissa's apparent decision to be more private in these recent years, maybe that's exactly what she wanted despite our caring about how we lost her and our reporter's instincts. I don't think anything will get us over the shock."
That's all I have. When I get more info, I'll pass it along to you.
Jonathan