The Facebook post was a troll. Because of the attention the post received, they were motivated to contact the Cold Case Unit and admit what they did. I hope the police take this opportunity to charge this individual as I'm sure they're also behind similar pranks and doxxing.
Here are the screen caps of the website in question. I'm curious to know where this troll got their photographs.
Here are the screen caps of the website in question. I'm curious to know where this troll got their photographs.