I was told through a detective in a cold case unit out of Florida that the 87 is in fact Interstate Transportation of Stolen Property, K9 is DNA testing of a victim, meaning verifiable items, like photos, etc. Does not mean a "body" per say. 77977 is the case\file number as well. I'm going to stick to my translation that the JK is Jacksonville Florida, since I was right on every other item listed on the tag. Just an FYI to anyone following this story.