Swimmer Found
Courtesy of CBS New York from the Hudson River and the The News & Observer in Durham, North Carolina.

His body was also found downstream in the Fort Tryon area off northern Manhattan in the Hudson River after being lost on June 14th in Stage 6 (The Palisades) of the 8 Bridges Hudson River Swim as reported by CBS New York [see above].
The Professor of Medicine at the University of North Carolina, Chapel Hill was renowned for his work in the HIV/AIDs field, his voluntary contributions in fields from medicine to politics and causes, and his generous financial support of many progressive causes and organizations.
For additional information and articles about van der Horst, visit The News & Observer and his obituary.