This week marks 19 years since Lisa Gaskin was murdered in west Tulsa. Her family, friends and old classmates gathered Saturday in her honor for a balloon release.

"It means the world that no one's forgotten her,” Lisa’s friend, Shantrease Stoddard, said.

Lisa was just 17-years-old when her body was found in a ditch by the railroad tracks along Southwest Boulevard, near West 41st Street. That was March 28th, 2000.

"It really has been a really long time,” Lisa’s sister, Monica Galchik, said.

In 2001, Tulsa Police shared pictures from the crime scene. Officers said someone beat her with a sharp, heavy weapon before strangling her to death.

“’Who?’ is the number one question right now for us. Because we wanna know who. Who would do it?” Galchik said.

Lisa left behind two brothers, four sisters and her parents.

"I just miss her. I just want her back,” her mother, Sandra Weems, said.

Weems said Lisa’s father is on hospice care.

"He's so afraid that he's gonna die before we find out who killed his baby,” Weems said. “And I'm really terrified of that too."

Even though it's been almost two decades since someone killed Lisa, her family and friends are still confident someone knows something and are begging them to come forward.

"There's not a shadow of a doubt in my mind that somebody in west Tulsa has the answers we've been searching for,” Galchik said.

If you have any information about who killed Lisa, call CrimeStoppers at (918) 596-COPS. You can remain anonymous.