Lisa Gore worked with Lisa Geise for only a short time, but has spent two and a half decades searching for answers.
Gore keeps a scrapbook that chronicles the case and her efforts to find her friend's killer.
"Occasionally, I will see something in there that 'oh, I need to investigate that,'" Gore said.
Feb. 26, 1989, Geise, 26, vanished from the office complex where she worked off Beaver Ruin Road.
Police found some of Geise's clothes and ID's scattered around the area. They also found a bloody mail cart used by her company dumped nearby.
There were indications that someone died at the scene, but Geise's body has never been found.
"I don't even care about a conviction at this point, just somebody tell us where her body is. That's what we want to know," Gore said.
Lisa Geise's mother, Jean Wallace, says she isn't vengeful anymore, and she has gotten over her rage. She says she just wants to know what happened.
Gwinnett County District Attorney Danny Porter says over the years, investigators have developed two suspects, but haven't been able to determine which one of the suspects had the opportunity.
"It's one of those cases that are on your frustration list, on your bucket list," Porter said. "We have two possible suspects that one piece of evidence could tip it in either direction."
Anyone with information about Geise's disappearance and possible murder is asked to call Crime Stoppers at 404-577-8477.
