(SALEM, Ore.) — One of the winners of a historic $1.3 billion Powerball jackpot last month is an immigrant from Laos who has had cancer for eight years and had his latest chemotherapy treatment last week. Cheng “Charlie” Saephan, of Portland, told a news conference held by the Oregon Lottery that he and his wife, Duanpen, would split the prize evenly with a friend who chipped in $100 to buy a batch of tickets with them, Laiza Chao.