Tony Hsieh, who co-founded Zappos.com, the pioneering American footwear and clothing online retailer, and ran it for about two decades, died at the age of 46 due to complications from injuries sustained in a house fire in New London, Connecticut. Known for his kindness, generosity and a relentless focus on customer satisfaction, Hsieh launched the free shipping and returns policies that became subsequently common-place in e-commerce. Zappos started in 1999 as Shoesite.com. It was founded by Hsieh along with Nick Swinmurn and Alfred Lin, who invested in the company through their investment firm Venture Frogs. The same year the company’s name was changed to Zappos and Hsieh became co-chief executive in 2001 with Swinmurn. In 2009, Zappos was acquired by Amazon in an all-share deal worth some $1.2 billion. Seven years before his investment in Zappos, Hsieh co-founded an online advertising network, LinkExchange, which he subsequently sold to Microsoft for $265 million. Hsieh retired from Zappos.com this past summer and was replaced by the company’s chief operating officer, Kedar Deshpande.