Police have concluded the explosion yesterday at a rental house in Bangkok's Serithai area that killed one and injured another was unrelated to politics. Police were informed about the explosion at the house located between Soi Serithai 10 and 12 in Bang Kapi district about 5.30am. At the scene, the body of Rames Chu-In, 16, was found on his bed with severe chest wounds. His female companion, Namprao Eiamwilai, 16, suffered finger, back and leg injuries, and was rushed to Nopparat Rajathanee Hospital. An investigation found the home was rented out by Thongpoon Srikot, Ms Namprao's grandmother who had recently picked up the two from Ang Thong, along with their seven-month child