Tucson Arizona - The story

Introduction
The scene in the USA in the 1980s, in Tucson, which is in the state of Arizona.
There are 2 characters, Tony and Mary. They didn't know at the beginning of the story.
Tony
Tony was in his twenties, we know that his father because he was an alcoholic and that his older brother during the VietNam war. He lived at home with his mom and his .
We don't know what he did , we only know that he didn't like his job, he said it was a '' job.
We also know that he felt quite , he didn't have any friends and his best friend seemed to be his car.
Mary
Mary was in her twenties, she was a , but her dream was to become a movie star in LA. She only $3.15 an hour, which is the minimum , and she could not to have her own place. She shared an apartment with a .
The meeting.
They met at the bar where Mary worked. Tony was a there. He must have found her attractive and invited her to go for a in his car. First, she but then she when Tony said that he had some cocaine.
Mary was found dead the day after and Tony was found dead in his car 2 weeks later. He had ______________
What happened ?