Johannes Thingnes Bö emulated countryman Ole Einar Björndalen with four biathlon gold medals at one Olympics and his mass start win Friday also meant Winter Games history for Norway. Bö’s victory gave the Nordic nation a 15th gold in Beijing, a feat no other nation has achieved at one snow and ice Games, with Canada’s 14 from Vancouver 2010 the previous best mark. He flirted with disaster by missing the last two targets for a race total of four but his rivals were also forced into penalty laps which allowed him to triumph over 15 kilometres in 38 minutes 14.4 seconds. Swedish sprint world cham…