Well if they're jumping off a bridge, depending on where it is it's possible they could land on an innocent bystander and kill them as well, or somehow survive but critically injure others as well as cause mental trauma to those that witness it. So keeping them from doing it would have alleviated those possibilities.
Also not suicide but like 8 years ago I talked somebody out of shooting up a crowded area in downtown Cleveland, breh was carrying his pistol in his hand while his girl was trying to stop him from airing out the street, he was either gonna get lit up by police or hit a bunch of random people trying to get his target. I was telling breh it wasn't worth it and the police was all over the place and just square up if he tryna get at somebody, he agreed and give his girl the gun then went about his business, there were probably 200 people out at the time and breh was unhinged.