Two people were injured and a woman was killed on Saturday evening after a man stabbed the three of them in the heart of downtown Denver.

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

A homicide suspect was arrested after four separate stabbing incidents left two dead and two others injured near Denver’s 16th Street Mall over the weekend. One of the people stabbed was a flight attendant on a layover who was at the wrong place at the wrong time when she was stabbed in the seemingly random attacks.

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

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

A Phoenix flight attendant was among four people stabbed during a two-day rampage in Denver over the weekend. Two people were killed, including a flight attendant, 71-year-old Celinda Levno, who was on a layover.

A Phoenix-based flight attendant was the victim of a deadly stabbing on Denver's 16th Street Mall, according to her representative.

An online fundraiser has been set up to raise money for the funeral for a woman who was killed in a stabbing in Denver over the weekend. The flight attendant was one of the victims who died after a series of stabbings along the 16th Street Mall.