Her heartbroken father wants to know who would do this and why.
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The roadside memorial was for 19-year-old Sara Stern, a talented student and artist from Neptune, New Jersey.
Last month, someone removed the original memorial off the Route 35 Bridge in Belmar.
"It's very hurtful that someone would desecrate a memorial," said Michael Stern, victim's father. "We don't know who did it."
On Monday, the grieving father installed a new one.
"It wasn't vandalized. It was removed. Everything just disappeared," Stern said.
Last December, the teenager disappeared.
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Officials believe she was murdered, then thrown over the bridge in Belmar to look like a suicide.
Her remains were never recovered.
Police eventually arrested two of Sarah's childhood friends, two teenagers, 19-year-olds Liam McAtasney and Preston Taylor.
Authorities suspect they were involved in her death in order to steal her inheritance from her grandmother.
"I want her to be remembered as a happy-go-lucky, great talented artist," Stern said.
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As the murder case makes its way through court, the last thing Sarah's father needed was for this roadside tribute to disappear.
His wife passed away 4 years ago. Sarah was his only child.
"It's painful, almost like being stabbed in the gut," Stern said.
Her father told Eyewitness News he never had a funeral for Sarah because her body was never found.
This Saturday, there will finally be a memorial service to remember and celebrate the young life of Sarah Stern.
The Sarah Stern Life Celebration/Memorial Service will be held from 1 p.m.-8 p.m. at Neptune Community Center. It's located at 117 3rd Avenue, Neptune City, New Jersey 07753.
Sarah's artwork will be on display.