Improbable to be very significant, but it might actually be. The way/where they jumped off the bridge or how they hit the water may have influenced their chance

Improbable to be very significant, but it might actually be. The way/where they jumped off the bridge or how they hit the water may have influenced their chances of survival. Edit: Implied is that how determined they were to commit suicide influenced their behavior before survival/death was fully out of their control.