Kai-Uwe Wulff, PhD 1969-2020 Successful serial entrepreneur, mentor to multitudes, and citizen of the world, PhD Kai-Uwe Wulff, died in a tragic sports airplane accident in Bayview, Texas on December 15, 2020, along with Grover Abel, of Bayview, Texas. Kai will best be remembered for his ability to challenge and change the status quo, his indomitable spirit and drive, and his desire to effect change for the betterment of humanity. Kai Wulff was a serial entrepreneur, with a world vision to use business principles for the good of global citizens. Kai worked hard and played hard, giving his time and energy to all hosts of activities across the globe, from his service in the German Luftwaffe special forces and a successful computer company in Germany, the turn-around of The African Safari Club in Kenya, to the market altering creation of Kenya Data Networks, and further successful fiber network companies in Uganda and Ghana for Google, and the business plan for Google’s Loon project. Although a tireless globe trotter, since 2015, from his home in Harlingen, Texas, Kai invested in a variety of ventures, including the establishment of Wulff-Aviation, flight school, being a life-long passion. His innovative spirit, his indomitable drive and his exacting intellect are hallmarks of this irreplaceable man of action and kindness in our midst. Although he never complained, Kai, for all his accomplishments, struggled with Crohn's a lifelong genetic disease, he felt a looming expiration date on his life, and instead of squandering his days in self-pity, he pushed himself and those around him to great accomplishments, with his tireless will, and voracious intellectual appetite. Kai leaves behind a towering legacy of achievements, while at the same time a gaping hole in our lives. Kai is survived by his son Nils Wulff, (Brownsville, TX), former wife Michaela Wulff, his mother Ursula Wulff in Kaiserslautern, Germany (Kai's Birthplace); sisters Heike Wulff-Meyer, Anke Wulff and children, and his life partner Shea Williamson and furry babies Jed and Molly Williamson.