I'd assumed that a classic Hollywood film about a man standing suicidally on a ledge would take the flashback route; How did he get there? What drove him to it? Etc. That it stands firmly in the present, playing out purely as a procedural story is quite interesting. There's a real Ace In The Hole flavour to the ever-growing media circus and the nihilistic crowd scenes.
Still, its all a bit anti-climatic. It would have been nice to get to know the Richard Basehart character more - all we really get is a load of laughable Freudian waffle. The final dedication to the NYPD is a little weird considering the emergency responders make poor decision after poor decision; if they are helpful at all, it's only by accident.
There is a lot of good here (I never even mentioned hysterical Agnes Moorehead), but overall, it's quite forgettable.