DELRAY BEACH, Fla. (CBSMiami) – Five years ago Friday, Randi Gorenberg left the Boca Town Center Mall, was abducted, shot and killed in a Delray Beach park. To this day, her killer remains at large.

For Randi’s mom, Idey Elias, she’s tired of living with the pain.

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“Nobody knows what it feels like to bury a child and know that you’ll never see that child again,” Elias said Friday. “Do you know how hard that is?”

Last year, there was hope as investigators labeled Michael Barrera as a person of interest. A confidential informant told detectives that he overheard gang members in jail talking about Gorenberg’s murder.

But Barrera has not been found and Elias said the hardest part is not knowing who took her child’s life.

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“The frustration is so deep that I cry because they can’t find anybody,” Elias said. “I cry because Randi’s not here. I cry because Randi won’t be here.”

Elias talked to CBS4 at the park where her daughters was murdered in the parking lot. She doesn’t want to have a conversation about her daughter’s death, but she knows it’s the only way to keep public attention on the case.

“I have to keep Randi’s case alive,” Elias said. “I have to keep it out there because I don’t want her to have died in vein. He’s an evil person and he’s got to be caught.”

Idey said she still believes someone out there knows who killed her daughter and is hopeful that person will finally see the light and come forward.

“My dear darling Randi…we start a new month,” Ivey said. “It’s a month of ups and downs. Your birthday, the day you were murdered, the day of your funeral.”

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If you have any information that can help solve the murder case of Randi Gorenberg, call Crimestoppers at 1-800-458-TIPS.