Teddy attended the University of Texas Southwestern Medical Center . She completed her surgical residency at George Washington University Medical School and her fellowship at the Mayo Clinic in Florida . As an attending physician , Teddy worked at Columbia , but after her best friend Allison was killed during the collapse of the second tower on September 11 , 2001 , she left and joined the army , meeting trauma surgeon Owen Hunt ( Kevin McKidd ) during her tour in Baghdad
collapse of the second tower
September 11 attacks
Teddy Altman