Brunswick, Georgia (CNN) -- The investigation into the shooting of a baby in Brunswick, Georgia -- a crime that's grabbed national headlines -- has taken yet another turn with the arrest of a local politician. The arrest stemmed from a verbal exchange between Brunswick City Commissioner James Henry Brooks and the family of one of the teen suspects in the slaying during the suspects' first court appearance on Monday. According to his attorney, Brooks told the family of De'Marquise Elkins, 17, that they didn't have to talk to police. "What he was trying to do, at the point and time that he was approached here at the courthouse, was just tell these folks you have a right to remain silent," Brooks' attorney Alan Tucker told reporters Friday.
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NEW: The mother and sister of a suspect have been ordered held without bond
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The city official is related to the family of one of the murder suspects, his wife says
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Attorney: James Henry Brooks wasn't trying to interfere with investigation
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Two Brunswick, Georgia, teenagers have been charged with murder
"I don't know why he spoke with the @placeholder family other than the fact that they are constituents of his," the attorney said.