A mom of two has died in front of her son after slipping off an almost 300-foot-high platform while trying to take a selfie to celebrate completing a dangerous bungee jumping stunt, authorities in Russia said. Extreme sports fanatic Elizaveta Gushchina, 45, carried out the jump on Saturday — the same day she plummeted to her death in front of her 22-year-old son, Nikita, according to local authorities. Gushchina then returned to the top of the 289-foot chimney at an unfinished thermal power plant without her safety harness to take a selfie with her son when she lost her footing...