LOUISVILLE, Ky. (WDRB) -- It's been four years since Officer Jason Ellis was murdered in Bardstown, and there and still no answers.

Ellis, 33,  was shot several times with a shotgun as he cleared debris from a Bluegrass Parkway exit ramp. Investigators say he was on his way home from work when it happened in 2013.

"It's kind of surreal," said Buddy Gulden, the owner of The Mercantile, where a memorial of Ellis is displayed. "This should've been solved. It should've been solved."

With each year that passes comes a renewed sense of frustration for the family, but they say they'll never give up.

"If it was just solved, it would just help," said Kris Phillips, Officer Ellis' mother-in-law. "It's frustrating to know somebody has the answers. They have the answers ... right here."

Ellis' murder is one of five unsolved murders in Bardstown in the last four years. Two Kentucky State Police detectives recently came out of retirement and are now dedicated to solving this case.

Still, it's no easy task. 

"We know a lot about who did not commit this crime because of how we've had to work this almost backwards, but I'd love to be able to say we're close to an arrest," said Maj. Jeremy Thompson with KSP. "But unfortunately at this time, we're not."

Shell casings from a 12-gauge shotgun were found at the scene the day of the murder. Officer Ellis' weapon was still in his holster.

"If someone is willing to ambush and murder those of us who protect the public, what are they willing to do to the rest of the public who are generally unarmed and not able to defend themselves?" Thompson said.

On Thursday night, the Bardstown Police Department is hosting a memorial drive from the department, past exit 34 where Ellis was murdered and then to the cemetery.

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