https://www.tcpalm.com/story/news/local/martin-county/2019/03/25/stuart-man-dead-after-hang-gliding-crash-remembered-friends/3267174002/

New, 49, of Stuart, died Saturday afternoon after he crashed his
hang glider into the water at the Jensen Beach Causeway, according to a Florida
Fish and Wildlife Conservation Commission report.

FWC officials described the incident as "while launching the hang glider from
the vessel, a malfunction occurred and the hang glider nose-dived into the water
resulting in a fatality."

Here.

He apparently was the pilot who started the boat tow operation.