The investigation into Italy’s cable car disaster that killed 14 people will focus on why the lead cable snapped and why the emergency brake didn’t engage and prevent the cabin from careening back down the mountain until it pulled off the support line and crashed to the ground, the lead prosecutor said Monday.

Verbania prosecutor Olimpia Bossi outlined the contours of her investigation based on what she said was objective, empirical fact of what occurred: “The brakes of the security system