Tragedy has befallen yet another sherpa at base camp on Columbus resident Bud Allen’s attempt to climb Mount Everest. Allen, a commercial real estate developer, wrote in his online journal post late Monday that two sherpas apparently drank something spiked with a substance, possibly wood alcohol. One of the sherpas apparently has died, while another is reportedly in serious condition. “I can’t understand why they would do that but it is tragic all the same,” Allen wrote. “There has been some speculation that what is an extremely dangerous practice at low altitude could be fatal at 17,500.” Base camp, the...