The main suspect in serial blasts at a Kerala's prayer meeting on Sunday has claimed to have learned bomb-making from the internet. 48-year-old Dominic Martin says he spent about Rs 3,000 to make bombs. Martin's family has been living at a rented accommodation near Kochi for over five years. Martin, who is said to be an expert in electric circuit, worked in Dubai as a foreman for years. He returned from Dubai about two months ago to carry out blasts.