Cynthia Joyner, 31, of Chattanooga was killed in a car crash one day before an autism fundraiser she had planned for weeks.

Sunday, the Chattanooga Autism Center will honor one of their most dedicated volunteers.

In 2012 Joyner started a program called "Play me a Riddle", where she came up with fun community events to help the public understand more about autism.

Joyner's teenage son, Matthew, is autistic. She helped raise thousands of dollars for the Chattanooga Autism Center and won the Volunteer of the Year award. In late June she was planning the Pints for Autism fundraiser before her life was tragically taken.

Joyner's friends say her spirit will live on through the organizations she has helped.

"She was a fierce woman. She loved life; she loved her children; she loved her husband; she loved our community, and she loved spreading the word about autism," says Dave Buck with CAC.   

A memorial service for Joyner will begin at 6 p.m. Sunday at the Lindsay Street Hall in downtown.

Meanwhile, the search for the wrong way driver who took Joyner's life continues.