-- An Orlando doctor's moving post on social media has highlighted the horror of Sunday's massacre at a gay nightclub in Orlando.
"On these shoes, soaked between its fibers, is the blood of 54 innocent human beings," Corsa wrote on Facebook. "I don't know which were straight, which were gay, which were black, or which were hispanic. What I do know is that they came to us in wave upon wave of suffering, screaming, and death. And somehow, in that chaos, doctors, nurses, technicians, police, paramedics, and others, performed super human feats of compassion and care."
Despite being the worst mass shooting in American history, Corsa wrote that he found hope in the dedication and care of his fellow staff at the hospital.
"This blood, which poured out of those patients and soaked through my scrubs and shoes, will stain me forever," he wrote. "In these Rorschach patterns of red I will forever see their faces and the faces of those that gave everything they had in those dark hours."
Corsa said he planned to keep these shoes in his office as a testament to the work of hundreds of medical staff at the hospital to save lives. Of the dozens of patients who arrived on Sunday, nine died and 27 are still being treated at the hospital, officials said.
"I want to see them in front of me every time I go to work," Corsa said. "For on June 12, after the worst of humanity reared its evil head, I saw the best of humanity of come fighting right back. I never want to forget that night."
Corsa could not be immediately reached by ABC News for additional comment.