He was always safety conscious and careful, according to his former boss. That's why family members are wondering why Dave Kessler got too close to a 7,200-volt power line. The 28-year-old communications worker, who was installing fiber optics lines at a Seattle-area water park, died after an elevated lift brushed the power line and electricity coursed through his back. A 19-year-old coworker was also shocked and suffered severe burns, but was expected to live. Family members said the married father of two children was going to take a new job to help pay for a home he and his wife were building. […]