Betty Marks always advised her daughter, Liz, not to text and drive. Liz insisted that she would never do such a thing, but in reality, she was guilty of doing so, much like many other drivers on the road. "I thought I was invincible," she remarked, "but clearly, I was completely wrong."

In April of 2012, weeks before Liz would turn 18, the teenager made one mistake that had grave consequences. In a flash, her whole life changed. Liz was driving and had looked down to read a text message from her mother. She drove straight into the back of a truck. According to EndDD, Liz "sustained a traumatic brain injury" and was airlifted to University of Baltimore Shock Trauma Center. 

Liz underwent a number of surgeries and spent three months under constant supervision at the Kennedy Krieger Institute in Baltimore, Maryland. She is blind in one eye, can no longer smell or produce tears. But Liz says the hardest thing she's endured after the accident is being alone.

When Betty checked her daughter's Facebook page one day, she read something tragic. "Can anyone please hang out with me today?" her daughter's status read. "I don't have any friends."

Understandably, Betty was shaken. The mother worries about how her daughter's life will play out from here, after she's gone through something so traumatic at such a young age. She and Liz have now made it a mission to warn about the dangers of texting and driving. They often speak at schools and other such organizations to tell their story.