A man wanted on charges of failing to register as a sex offender in Massachusetts is being sought on charges of scamming people at the Warwick Mall. Police said Monday that Clyde Brown, 49, is facing two counts of obtaining money under false pretenses. Authorities say two victims were allegedly approached separately last weekend at the mall by Brown, who offered to sell them an iPad at a steep discount. After the money was handed over, police say he gave them a heavily sealed FedEx box and left. The box was found to contain only old magazines. Police say Brown has an extensive criminal history that includes charges of pimping, drug dealing, and theft.