Security guard saved 6 people on 9/11; 25 years later, they are trying to save him
A security guard who saved lives during 9/11 now battles kidney cancer.
Dereck Lovell guided survivors through the South Tower's smoke and flames.
He is now awaiting a kidney transplant after his own kidneys were removed.
Survivors he rescued are raising awareness for his urgent need.
Lovell, who considers himself a job doer, is now receiving help.
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