dr. daniel ivankovich. ♪ [ applause ] >> thanks. thank you.not the only one. in the world that i see, everybody matters, and nobody is invisible. especially poor people. people of color and people with disabilities. i serve as one example that everyone can care enough to fight for what is right. i hope that my efforts inspire others to follow. it's an honor to be recognized as a cnn hero. to my family and kids, for supporting me and putting up with those 120-hour workweeks and to my dear wife, karla. she transforms lives with me on chicago's front lines every day. i wouldn't be here tonight without you. peace and love. [ applause ] >> thank you, dr. dan! >> for helping to fix my knee. >> for bringing my leg back to life. >> and giving us hope. >> yay. >>> coming up, justin theroux, and later kathy griffin honors a hero who's helping our combat veterans. "cnn heroes: an all-star tribute" is sponsored by microsoft. empowering us all. a new screen for new perspectives. a new pen for new masterpieces. new speakers for a new sound. we reinvented th