Man climbs Chicago skyscraper with bionic leg

Zac Vawter became the first person ever to complete the task wearing the mind-controlled prosthetic limb, Sunday, Nov. 4, 2012 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.