An American schoolboy has sent an e-mail letter to US President Bush threatening “to find and kill” him. The sender was promptly spotted by presidential security service by typical grammatical errors. The trace has led to Marion, Ohio. The 14-yearold guy has admitted to having done wrong – he has just entered the local Harding School, and his spelling problems has already become the talk of the town, according to Interfax. The delinquent, who has been detained, says he had a bet with his classmate.