Some time ago, he was made aware that one of his kidneys was non-functional and eventually needed to be removed. After becoming symptomatic, his doctors decided it should be removed sooner rather than later.
Fortunately, his other kidney is 100 percent healthy (we only need one!).
Earlier this month, Ken wrote, "Thanks so much to my wonderful WABC family and to all of you who've sent so many well-wishes!"
He has been checking in on his Facebook accounts so feel free to say hi.