The decades-old cold case remains a mystery.
Authorities believe the stepdaughter of UFC fighter Walt Harris is in danger.
She was also four months pregnant at the time.
The teen’s mom received a message on her answering machine that said “leave me alone” or “let me go home.”
She walked out of her high school and drowned herself in the Hudson River.
The teen hasn’t been in contact with her family for two weeks.
Toni Boyce, nor her dog, have been seen since.