It's the first time such a website has been used and officers hope it will bring them the vital clue to solve his 2009 murder.
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Toby Bower went missing from the Sutton-in-Ashfield area of Nottinghamshire on Friday.
Residents will have the opportunity to find out about the work the Environment Agency are doing to reduce the flood risk in the area.
A charity football tournament will be held in Leeds today in memory of a teenager who was murdered in the city.