To PLOW into a truck and crumple the car in such a way that it kills 3 people in it… There is a MAJOR difference in speed between object A and B. That tells me either she was FLYING and rear ended the truck probably going a normal pace… OR the truck was stopped/very slow and she was driving at a normal pace and never saw it coming. Typical not paying FAR ENOUGH DOWN THE ROAD ATTENTION. Especially if it straight line of sight. THAT is what killed those 4 people!!!
Look at it this way. Take that phone right the fuck out of the equation. Replace the phone with her looking up in the rear view mirror for the same ammount of time she was looking at her phone. SHE STILL DIDNT KNOW THE TRUCK WAS COMING, TO THINK (I HAVE ABOUT XXX SECONDS TO LOOK IN THIS MIRROR AND COMPLETE WHAT EVER THE FUCK I AM DOING BEFOR I NEED TO LOOK AT THE ROAD AGAIN) AND HIT THE MOTHERFUCKER KILLING HERSELF AND 3 OTHERS!!!
That is called deductive reasoning! Its not the goddamn phone, its the stupidity of the driver!