Tristan O’Tierney, who helped develop Square’s original payment app, has passed away – TechCrunch
Tristan O’Tierney, a cofounder of the payments company Square has passed away at age 35. According to the San Francisco Chronicle, O’Tierney died last weekend in Florida or addiction-related causes after a hospital was unable to revive him. In the Chron’s piece, it reports that Square cofounders Jack Dorsey and Jim McKelvey hired O’Tierney to…