In Fort De Soto Park, a backhoe dug a 35 foot long and 15 foot deep trench in the sand Friday. Inside it workers placed the remains of a sperm whale that was euthanized Thursday after it was found beached near John's Pass. Veterinarians and workers with several wildlife organizations performed a necropsy of the whale. Tissue samples will be sent to federal labs for testing, and a spokesman from the Florida Fish and Wildlife Conservation Commission said he is not sure when to expect results. Kevin Baxter, the FWC spokesman, said it's too early to speculate on a cause of death, "but there were some sign of natural issues." Veterinarians from the University of Florida, and workers with the FWC and the National Oceanic and Atmospheric Administration, knew the immense animal came to the beach to die. At 2 p.m. Thursday, veterinarians slid a 6-foot syringe into its dark hide and filled the whale's chest with potassium chloride. It died shortly after. A boat towed it to Fort De Soto.