An autopsy is planned for later today on the body of a Lake County sheriff’s detective. The body of 57-year-old Jim Spannan was found in his boat slip at Washington Park Marina in Michigan City Saturday. Spannan’s wife had reported him missing several hours earlier A friend who went to check on him found tools but no sign of the man. A portion of a ladder extending down toward the water was also missing. Divers began an underwater search and found Spannan's body in eight to ten feet of water. Department of Natural Resources spokesman Shawn Brown says they're not sure how Spannan wound up in the water.