Authorities confirmed a partial skull, jawbone and other human bones were found at the Valley Picnic Area off Riverview Road in Boston Township, approximately 1 mile south of S.R. 303 in the Cuyahoga Valley National Park.
Two park visitors found the human remains Monday and reported it to the park authorities about 5 p.m. according to CVNP Chief Ranger Chris Ryan, who spoke at a press conference Tuesday.
The FBI evidence response team is an assisting agency in the investigation, Ryan said.
"We work closely with a number of different agencies," Ryan said. "We work with the FBI on serious crimes."
FBI agents and cadaver dogs were searching a wooded area north of the Riverview Road trail leading to the Oak Hill area on Tuesday.
"The area is a closed crime scene and is considered a homicide until we prove otherwise," Ryan said.
Ryan said some clothing was found in addition to bones, which were scattered, perhaps by wildlife.
"We don't know if death occurred here or elsewhere," Ryan said. "Wildlife will scatter bones."
The sex is unknown at this time, Ryan said. It has not been determined whether the remains belong to one or more than one person.
The trail is a popular hiking area, and the park has 33,000 acres along the Cuyahoga River with more than 2.5 million visitors per year, Ryan said.
"The CVNP is between two metropolitan areas -- Cleveland and Akron -- but anytime someone finds human bones, it is unusual," he said.
The bones will be turned over to the Summit County Medical Examiner, Ryan said.
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