- Shooting inside a Costco in Southern California leaves one dead, two injuredNBC News
- Shooting inside a Costco store leaves 1 dead and 2 hurt in Southern CaliforniaCNN
- Costco store gunfire leaves 1 dead, 2 injured in Southern CaliforniaFox News
- Police: 1 dead, at least 2 injured in shooting at Costco store in Corona; suspect in custodyOCRegister
- 1 killed in shooting at Costco in CoronaFOX 10 News Phoenix
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