Dan Borislow

Daniel M. Borislow (September 21, 1961 – July 21, 2014) was an American entrepreneur, philanthropist, sports team owner, inventor, and thoroughbred horse breeder. He was known for creating the magicJack. It is a small product which can be plugged into a computer's USB port and allows for unlimited calling from regular telephones.
Borislow died on July 21, 2014 from a heart attack, reportedly after playing in a pick-up soccer match, aged 52.