LOUISVILLE, Ky. (WDRB) -- Kentucky State Police say divers found "nothing of evidentiary value" in a search of a pond that's near the place where Bardstown police officer Jason Ellis was shot and killed in late May.

Investigators returned to the scene and used a private K-9 group to assist in the search.

Trooper Norman Chaffins confirmed that members of the Kentucky State Police responded Thursday after they, "received leads through their investigation."

He emphasized that these leads are not due to tips from the general public.

Chaffins says KSP was contacted by an outside K-9 group -- a group he declined to identify -- to ask if its members could assist in searching the scene for evidence. That group showed Thursday morning, and Chaffins says a K-9 indicated that some type of evidence might be found in or near a pond located near the scene where Ellis was shot.  

"We used some canines this morning," Chaffins said, "and the canines led us into the area of the pond, and that's where they're searching now."

"We've not recovered a weapon in this case right now," Chaffins said.  "If that's what it turns out to be, then that would be a great thing for the case, and closer to leading us to the suspect in Officer Ellis's murder."

Police say Officer Ellis was clearing tree limbs from the road when he was shot multiple times on an off-ramp to the Bluegrass Parkway in the early morning hours of May 25. Investigators think the tree limbs were intentionally placed there as part of a plan to kill Ellis.

Police encourage tips on the case via email: Elliscaseetips@ky.gov.

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