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The Boston Globe

Nation

Amputee with bionic leg walks up 103 floors

CHICAGO — A 31-year-old amputee made history Sunday, becoming the first person to climb 103 floors of one of the world’s tallest skyscrapers with a bionic leg.

Zac Vawter was wearing a prosthetic leg controlled by his brain when he took part in ‘‘SkyRise Chicago’’ inside the Willis Tower. The charity event raises funds for the Rehabilitation Institute of Chicago.

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