The Sparks Police Department is asking for the public’s help a suspect who who stole a $4,000 necklace from a pawn shop last Thursday. Police say the woman was looking at necklaces at Super Pawn in the 600 block of South Rock Boulevard near Glendale Avenue when she grabbed a necklace and ran out the door. Employees chased her, but she got into a waiting vehicle in the alley and drove off.