Aman, described to be a white male, 20-30 years old, average height, robbed a store by using a gun and covering his face with a bandana. he displayed a silver-colored revolver. he forced everyone to lie on the floor after the register was opened and he took money directly from the cash drawer. he left the scene in a vehicle that was parked just down the block. the vehicle was a 2005-2010 light blue, ford taurus and a partial plate number was given to police: bvj-1__ no stolen vehicles matching that description have been reported in the state in the past 48 hours. what factor is the key to the solvability of this case?