The FBI is offering a $20,000 reward for any information leading to the arrest of the person (or persons) involved in the shooting deaths of two people in the Cleveland Metroparks Rocky River Reservation last week.

40-year-old Carnell Sledge and 33-year-old Katherine Brown were both found shot to death near the Lorain Road Bridge eight days ago. Metroparks police have offered few details regarding the incident, but Chief Katherine Dolan says "all available resources" are being used.

Sledge and Brown were said to be longtime friends, and their loved ones honored their memories during a vigil at the reservation Tuesday evening.

With the killer still at large, many are on edge about the safety of the park.

Edward Evans says he believes the parks are safe, but the shooting has since made him uneasy. 

"A little apprehensive since the shooting that's for sure," he said.

Metroparks officials have continued to call this an "isolated incident" and reiterated Wednesday that "safety of our guests is always a priority."

"Cleveland Metroparks Police patrol the Park District 24/7," officials said. "Park guests are encouraged to participate in the 'if you see something, say something' national campaign. For emergencies within the Park District call: 440-333-4911, for information or non-emergencies contact: 440-331-5530."

Kathy Nagel, a mother who brought her kids fishing, wants to know more about what happened.

"It might make me feel more comfortable to come down here or less..depending on what they say," Nagel said.

Evans says more information could help put people who are on edge...at ease.

"Knowing the story one way or another will help with peace of mind."

Lois Griffin believes the shooting has not stopped people from coming, but says safety is still top of mind and a concern.

"I think west siders tend to think wait a minute this happened in our neck of the woods. this is not suppose to happened."