20/20 S2011E37 - Suicide Attempt or Terrible Accident

Was it an accident or a suicide attempt at 80 mph on a highway that shattered one life and killed two other innocent people? Justine Winter was a 16-year-old straight-A student with a bright future. But one night, while breaking up with her boyfriend, she texted him that she wanted to end her life. Just a few minutes later, her car collided with a car carrying Erin Thompson and Erin's 13-year-old son, Caden. Both were killed instantly, yet somehow Justine survived and was charged as an adult with two counts of homicide. But was it? Did she deliberately kill a mother and her son, or did something else happen that night?