Creating one viral tech hit is rare. Creating two is like spotting a unicorn riding a unicycle. It just doesn’t happen. Except that’s what Colin Kroll did. First, he co-built one of my favorite apps, Vine. The six-second-video creators platform was a true sensation and helped launch the careers of many artists, comedians, and musicians, including Shawn Mendes
. Despite its popularity, Vine proved almost impossible to monetize and was shuttered by parent company Twitter. Kroll followed that by co-creating the insanely popular HQ Trivia, the first real-time live trivia game show app. Over the weekend, the 34-year-old maverick tech entrepreneur was found dead of a possible overdose. It’s a sad coda to what had already proved to be a remarkable life.