So sad to hear this story.
I rode the stretch from Edwards Ferry to Sycamore Landing today, and it was an absolute mess. This was within a mile and just south of where the tragedy occurred. In a three mile stretch, I had to carry my bike over or around probably 50 large trees that had fallen across the towpath. Looks like the wind blasted through there. It was not a fun ride and I only rode it to avoid a much longer ride on the road, but in retrospect, it would have been much faster to take the longer route.
I saw several fully-outfitted tourers on River Road, unable to ride the towpath.
Here are a couple pics from today's ride at Mile 29.