Marshall was on the BNP stall in Barnsley in 2007 when it was first attacked. Pictures of this attack appeared on Redwatch so Marshall can expect no sympathy. Neither can Doyle Security for associating with this scumbag. The matter has already been referred to them as well as to the club and to the local newspaper.
If the car is seen there again the matter will go further still. Doyle Security has a lot of satisfied customers listed on its website who might not be so satisfied if they're contacted about this. The FA will be informed too about the BNP links to the stewarding at Oakwell.