Daewoo Death

Have a friend who was killed when her 2000 Daewoo Nubira stalled on the open highway. Hit from behind on highway. Anyone out there have any similiar problems with sudden stalls. Just found out Camshaft Position Sensor was recalled, could a defective CMP cause a stall?? This car just shut down at 70mph. Car had its 40k service about 400 miles before stall. Not dealer serviced, just serviced through local shop. Need to hear from some people. Any info you could give would help.