Stolen bikes

So by the looks of this gumtree ad, my bike was stolen by some prick who lives in the block of flats across the road from me:

http://www.gumtree.com/london/96/42165196.html

I tried to set up a meeting with him on Sunday to get the bike back but he was a no show. A friend called him today and apparently the bike has now been sold.

The police have been unhelpful and are not pursuing it and I don't know which flat this prick lives in. Any ideas for how I can take my revenge on the world?

P.S. if anyone knows of someone who bought a Charge Plug Racer off Gumtree in the last few days, tell them they are riding stolen property and that karma will come and get them one day.

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