The notorious mobster’s run from the law was remarkable for its longevity, which was due mainly to the unremarkable new identity he built for himself while on the lam.He adopted an unassuming lifestyle, paid for everything with cash, didn’t drive a car, limited his social contact to small talk and adhered to the code of silence from the mob life he left behind. When federal agents tracked him to his lair this week, it was only after targeting the one part of his past that Bulger didn’t leave behind — his longtime girlfriend, Catherine Greig.By...