Joliet police say a man was shot at a Denny's at 2531 Plainfield Road on April 30.
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Last week, police released video showing Brown with a person of interest inside the restaurant, shortly before the shooting.
Joliet police looking for person of interest in homicide outside Denny's
Officials were asking for the public's help identifying the woman seen in the video.
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RELATED: Joliet police looking for person of interest in murder in Denny's parking lot
Now a week later, police say Bobbi Ollom and Joshua Anderson killed Gregory Brown Jr.