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Published November 04, 2012, 12:00 AM

Zac Vawter arrives on the 103rd floor

Zac Vawter arrives on the 103rd floor of Willis Tower becoming the first person ever to complete the task wearing a mind-controlled prosthetic limb Sunday in Chicago. Vawter, who lost his right leg in a motorcycle accident, put the smart limb on public display for the first time during an annual stair-climbing charity event called “SkyRise Chicago” hosted by the Rehabilitation Institute of Chicago, where he is receiving treatment. (AP Photo/Teresa Crawford)

Read the article: Amputee climbs 103 floors of Chicago skyscraper using thought-controlled bionic leg