Joshua Cody Mitchell, who is 20, appeared in court on closed-circuit television Tuesday and had his case put over until July 30 to give his lawyer time to review the file.
The murder charge replaces earlier counts of criminal negligence causing death, hit and run causing death and dangerous driving causing death.
Mitchell is also charged with possession of stolen property, along with one count of theft of $113 in gas.
Gas station attendant Maryam Rashidi, who was 35, was hit by a stolen pickup truck June 7 while trying to stop the driver from leaving without paying.
She was struck and carried along on the hood before she fell off and was run over before dying a few days later.
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