Chelan-Chelan County Sheriff Brian Burnett reports on Tuesday, September 4, 2012, at just before 5 PM, Deputies and Chelan EMS responded to a report of a dead body as a result of possible drowning in the area of Spader Bay on Lake Chelan. The body was identified as 91 year old Betty Cooper of Chelan. Ms. Cooper was located in the water near the shore by a neighbor after a family member came to them reporting her as missing. It is believed Ms. Cooper went for a swim the evening prior, which was common for her to do, but presumed drowned sometime during the course of the swim. An autopsy is being planned to determine the actual cause of death. Investigators found nothing suspicious surrounding the incident.