Smith was on the run after the death of Sheeva Sharda Miller, 21, who was reported missing April 7.
Smith sent text messages to Miller's family last week saying she was "out of the way." The messages included where Smith's storage unit was and its access code.
Police found the woman's body in the trunk of a Cadillac in the storage unit. It appeared she had been strangled with a belt, officials said.
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