A man captured in a surveillance video could be a key witness in the case of a missing Tucson, Ariz. girl as authorities expand their search into Mexico.
A group of five people were captured on surveillance video leaving a club near the Celis family home around the time the 6-year-old disappeared.
The three women and two men were captured on camera just a block from the Celis house.
Police said the group was walking away from a club at 1:30 a.m. in the direction of the Celis' home.
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