Police will question former boxing champion Somrak Kamsing to help them figure out what drove a local politician to kill his wife and their two children before turning the gun on himself. Thawatchai Thong-on, 48, a former member of Nakhon Si Thammarat’s provincial administrative organisation, was found dead at a house in Bangkok’s Hua Mak area, along with his wife Pattcharanat Sangprapai, and their two daughters. The bodies were discovered late on Wednesday afternoon after security guards at the house heard several gunshots coming from the house. Lt Cdr Somrak, who won an Olympic gold medal ba…