(Beaverton, OR)  --  Authorities are trying to capture a thief who uses guest passes to gain access to locker rooms and steal car keys and other items from lockers.  Beaverton police say the woman will then track down the vehicles matching the keys she stole and will take more items from inside the cars.  Police tell KATU-TV the woman has specifically targeted the 24 Hour Fitness and LA Fitness locations in the Beaverton area, but is also a suspect in a number of other cases around the Portland Metro.