Searching now at Allen HS? Weren't the friends she was with that night all from Allen High School? And you can enter the first floor of that garage at least 3 or 4 different ways.. One Off Legacy, one off Bishop, one or two onto Lois Ln which runs by Dunkin Donuts.
But what about how you exit? Isn't the exit for upper levels only one way. .. A ramp that exits out on to Bishop?