Celinda Levno, 71, died between Saturday night and Sunday morning from a "senseless tragedy," said the Association of Professional Flight Attendants.

Celinda Levno, 71, is being remembered by loved ones and members within her industry for a career that spanned decades as a flight attendant.

American Airlines tells PEOPLE the company is “heartbroken and mourning the tragic loss of our colleague who was the victim of a senseless crime"