Analysis: the guy was filming with his phone, was stepping sideways to get a better shot and walked right off the platform. Also, might have been a woman, can’t really tell.
Phone definitely went in with him/her.
The unfortunate who fell into the lake was filming 3 people in front of the giant helmet.
Person 1: a giant Dude Wipes container. He proved useless in this emergency. Couldn’t even take 2 steps on his own.
Person 2: what appears to be an elderly woman, she is feigning enthusiasm for the new helmet. She’s sort of dancing for the camera, jubilating, with the giant Dude Wipes container. After our protagonist takes a header into Lake Erie, elderly woman walks Dude Wipes over to the edge of the barge to observe the possible drowning.
Person 3: A hero appears. Just when all seems lost, when Dude Wipes and elderly woman doubling as hype man and Dude Wipes attendant fail to assist, a third player appears. It is someone dressed as a character. It is unclear if it is Brownie the Elf or possibly the embodiment of another personal hygiene product that sponsored the giant helmet on a barge ceremony. Regardless, our anonymous champion grabs a flotation ring and throws it into the water. The day is saved.