Lee (or Mari) can you post a suggestion from me on this terrifying ordeal...I went through the same years ago, and it's agonizing! If the kittens littermate is put in a carrier behind the trap, the loose kitten should respond to the crying and go into the trap. The carrier should be covered over so Sterling can only get to her littermate thru the trap...which of course should have wet & dry food at the back, with a trail (tiny nibble of food) at the door leading to the trigger. Newspaper on the floor of the trap will keep messes to a minimum and allow relocation if needed. Hopefully also it's a kitten trap with a trigger that goes off easy. No food should be in the carrier with the littermate, but a small shoebox potty in case of accidents. This way the one in the carrier will yowl hopefully loud enough to attract Sterling. Chances are the kitten will need to stay in the store overnight when all is quiet. And I'm praying that the baby didn't get out the door! If there's more than one littermate (or even a loud un-related second or third kitten) several traps can be set throughout the store. With large pet stores there tends to be rodent poison set under racks which only adds to the ordeal being so awful. My little escapee some 10 years ago was safely caught using other kittens to attract him. I sure hope the baby gets trapped...so scary. :-( Jan