Hint 1
Hint 2
Hint 3
You'll find this information on Jamie's laptop.
How do I get into Jamie's laptop?
One of the messages mentions a little town in Illinois; it's not the town where she grew up, but it's close. That's better anyway, because if the town was so small, she would be suspicious that she'd never heard of Joey.
Specific choices are: midwest, Illinois, Mattoon.