KNOXVILLE, Md. -- The Frederick County Sheriff's Office is investigating a man's death on a small island on the Potomac River.
Authorities said a kayaker found the body inside a tent at about 10:30 a.m. Sunday near Georges Mill just below Knoxville Falls Road.
The dead man's identity has not been determined. He was believed to be white and in his early 40s.
The remains have been sent to the medical examiner for an autopsy.