(CNN) As Orlando, Florida's, chief medical examiner, Dr. Joshua Stephany is used to gruesome scenes. But nothing in his 10-year career prepared him for what he saw inside the Pulse nightclub on Sunday morning after the worst mass shooting in U.S. history. "It's almost like time stopped," Stephany told CNN Chief Medical Correspondent Dr. Sanjay Gupta on Wednesday in his first media interview since the incident. "TVs were playing in the background; strobe lights were blinking; drinks had just been poured, food half-eaten, checks about to be paid. It was truly like time stood still." Stephany got the first call about 4 a.m. There were multiple casualties, about 11 or 12 bodies. It sounded like a lot of cases for one shooting, but he knew his overnight staff could handle it. But then texts kept coming. First 20 bodies, then 30. He headed to the nightclub.In first media interview, Orlando medical examiner says victims didn't appear to sufferAll autopsies are finished, and most victims' bodies have been released
"Our role is recovery, but before we retrieve the bodies, we have to document," _ explained.