Markings on the neck of a woman found naked and dead in the wilderness near Big Sur were caused by insect bites, not strangulation, cops have revealed. Joanna Shields’ body was discovered in a pool of water on Pine Ridge Trail near Sykes Hot Springs on April 9. The 37-year-old reportedly had a gash on her head and the hikers who found her claimed she had suspicious markings on her neck. But on Friday cops shot down any suggestion she had been strangled , saying they believe the marks were