I'll be there right under the bridge with my kayak to smack him on the head with my paddle on the off chance he actually pops back up alive from under the water.
I think it's just a trick to get rid of this idiot once and for all. We'll let him jump, and then he'll realize there are no boats in the water to pick him up... no rescue divers. Hopefully, we'll just get swept out to see and we'll never have to hear about his next idiotic stunt.
"I don't see any boats under there..."
"Trust me, they're under the bridge... they just don' t want to get in the way."