A serial arson suspect, who a New York judge freed without bail Monday, ignited a new investigation less than two hours later on armed robbery charges, according to the Suffolk County District Attorney’s Office. Amanda Burnside, a Southampton woman who was accused of lighting fires at three houses, was released on her own recognizance despite prosecutors’ request that the judge set bail at $500,000 or $1 million bond. A judge ordered her to report for supervised release within 72 hours. Instead, according to authorities, she waited less than two hours before she acquired a knife, went into a Dollar Tree...