I presume the store was Savenor's. You said it was near closing. It closes at 8:30 p.m. on weekdays (I'm assuming it was Thursday or Friday night, Kerry having flown back from Washington that day). If it was during the impeachment, it was wintertime. In winter, in Massachusetts, 15 year olds can work no later than 7 p.m.. Are you sure the girl was 15?