ATWATER VILLAGE ( — Friday marked a painful anniversary for those who knew and loved a woman found dead near a freeway on-ramp 18 months ago.

A candlelight vigil at Riverside Drive near Allesandro Elementary school was planned in honor Bree’Anna Guzman.

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Guzman, a Lincoln Heights native, disappeared while walking from her home along the 73000 block of Humboldt Street in Dec. 2011.

The 22-year-old’s body was found a month later near the Glendale (2) Freeway on-ramp in Echo Park.

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Her mother told CBS2’s Suraya Fadel that she’s on a mission for justice.

“Basically, my whole theme is ‘Justice for Bree.’ And we have to keep the case alive,” she said. “I’m her mother and I will not let this case go cold … I believe that is what Bree would want me to do and I feel that there definitely is somebody out there who knows something.”

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A $75,000 reward is being offered for information leading to the arrest and conviction of the assailant; so far, no arrests have been made.