Boston - A bank robber dubbed the "spelling bee bandit" because the notes he's passed to tellers contain the same misspelling is being sought for four robberies in Massachusetts.The FBI says the man's notes have just one word: "robery" with one "B."His latest target was a bank in Peabody. He's also suspected of hitting banks in Arlington, Reading and Burlington since October 31. In all the robberies, he's worn sunglasses and either a baseball hat or hood. He's described as white, in his late 30s or early 40s and between 1.5m and 1.9m tall. The FBI says it's concerned because the man's becoming increasingly aggressive toward the tellers and has issued a $1 000 reward.