GREENVILLE, N.C. (WNCT) – The Orlando massacre at the Pulse nightclub is something Dr. Joshua Corsa will never forget.

Corsa, a 2012 graduate of the Brody School of Medicine, is now a senior resident at Orlando Regional Medical Center.

Corsa had reported to work at 6 a.m. for his usual 24-hour shift on Saturday, June 11. On Sunday, around 2 a.m., Corsa received a text message saying there had been a shooting.RELATED: Full coverage of the Orlando Terror Attack

“It said we’ve got a report of an active shooter, up to three victims. Unfortunately here in Orlando, that’s not particularly unusual,” he said.

What he thought was an isolated incident quickly turned into a nightmare. Corsa said when he turned around and saw four or five more patients being wheeled in, he realized there had been a terrible incident.

As more patients came in, Corsa began assessing injuries and assigning doctors to different areas. He performed several surgeries himself, including two on critically injured patients who would survive thanks to quick work by doctors.

After working for nearly 32 hours straight, Corsa finally went home and got rest. When he woke up and returned to work, he took a picture of his blood stained shoes and posted it on Facebook with a message for family and friends.

That post would quickly go viral.

“It was a way to kind of tell them about how proud I was of the team and the terrible things we went through,” Corsa told WNCT’s Josh Birch.

Corsa said he plans to keep those shoes on until the last patient leaves the hospital.

As the nation, and world, recover from the terror attack, Corsa still regularly sees the patients and their families, including the two victims he helped save the lives of.

He said seeing them recover is a healing process of its own for him.

“It’s been very good for me and for all of us to watch these wonderful people get stronger, get better, and hopefully very soon allow them to go home,” he said.

Corsa said he hopes to come back to serve as a surgeon in the East one day.