Sources: Lehner dove into Niagara River alone, tether line snapped

BUFFALO, N.Y. (WIVB) — Buffalo police have for decades trained on the Niagara River. Because it’s among the fastest rivers in North America, they’ve done so with the full understanding of the danger that comes along with diving into such treacherous conditions.
They were of the same mentality last Friday, officials have said, when Officer Craig Lehner entered those swift waters for the final time.
Lehner dove into 25 feet of water alone last Friday, according to multiple police