The mistress of former NFL player, Buster Barnett, Lisa Brown, allegedly kidnapped his wife and then killed her finally killing herself, following high-speed pursuit, Georgia police said Friday.

Clayton County police allege that Brown, of Lithonia, Georgia, kidnapped Sandra Barnett, of Ellenwood, Georgia, from her home Wednesday, according to local reports.

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Sandra, 58, is the wife of Buster Barnett, who played for the Buffalo Bills in the ’80s. “Sandra was actually on the telephone with a friend when Lisa showed up at the front door,” Capt. Richard Gandee said. h/t people

Police also allege that Brown, 49, had purchased handcuffs before the abduction.

Brown was the subject of an Amber Alert two years ago after abducting the  couple’s 12-year-old daughter.