Names for two short story characters (description included)?

Ten-year-old girl:

She admires and looks up to her older brother as a role model. However, since the day he died, she has been unsettled. On the night he died, she had seen the bottle of vodka in his room. She's never gotten the closure that she needed. She represents sorrow.

Seventeen-year-old boy:

He loves his little sister and wants to be the best he can be for her. However, he indulges in the pleasures of alcohol with his friends. One night, he gets in a car and drives with his friends in the car. He and his friends die; there is one survivor.