> He absolutely could not of stopped in time.

Somebody (not necessarily the husband) was driving too close to the car in front. You should have enough time to see the car stopping and stop yourself. A 2 second gap at 60mph is 178 feet. A second to react and that still gives you 88 feet to slow down in before you even get to the point where the Tesla started to slow, reducing the impact speed to far lower -- not enough that should kill anyone.