Found Stolen Bike on Facebook Marketplace

Ok so as the title says, I just found my stolen bike on marketplace. About a month ago I posted actual footage in here of the man stealing it (check my posts since I can only add one type of attachment). I'm about to give up, but before I do I wanted to come on here and see if anyone has any last advice on what to do. Keep in mind:   - The police and my assigned detective said they essentailly can't do a thing because I don't know the serial number- I am currently messaging the guy about it on FaceBook- I am not going to try and meet him to "test ride" then ride off on it because he seems dangerous and it's not worth it- My detective informed me to not post his information on here because I could technically be charged with "aggravated harassment" since I technically don't have concrete evidence he is the thief (although I know it for fact based on the bike and his face/appearance).- I am no longer going to keep my bike outside lol   My plan now is to send one last message to him with the footage, share the fact that it's spread across the internet and he is clearly seen in it, the fact that there's a police report, and leave him a terrible seller review, and hope for the 0.00001% chance that he concedes. If you have any other ideas what to do, thanks in advance.   FYI it's a blue Raleigh Rush Hour fixed gear bike, size Medium with 700x28 tires. It's also been swapped with flat Crew handlebars, black mountain bike pedals, and a Selle Italia saddle.   So, If you JUST SO HAPPEN to see ANYTHING on FACEBOOK MARKETPLACE that LOOKS LIKE THAT... let me know :))))