In 2012, Inouye began using a wheelchair in the Senate to preserve his knees, and received an oxygen concentrator to aid his breathing. In November 2012, he suffered a minor cut after falling in his apartment and was treated at Walter Reed National Military Medical Center. On December 6, he was again hospitalized at George Washington University Hospital so doctors could further regulate his oxygen intake, and was transferred to Walter Reed Medical Center on December 10. He died there of respiratory complications seven days later on December 17, 2012. According to the senator's Congressional website, his last word was "Aloha." Prior to his death, Inouye left a letter encouraging Governor Neil Abercrombie to appoint Colleen Hanabusa to succeed Inouye should he become incapacitated; instead Abercrombie appointed Hawaii's Lieutenant Governor Brian Schatz.