//The brothers lost control while trying to negotiate the exit from I-895 and were thrown onto the ground below the elevated ramp//
One of them was on a stolen machine too.
Many years ago we had a guy from work die the same way (he went over the edge of the guard rails) exiting 101 south going onto Rt 92 merge exit ramp which was the transition onto the San Mateo bridge.
That offramp is pretty high off the ground, at least 60 feet.
Haven't done that.