Troy Dwayne Santos, 29, is accused of shooting Frederick Lamar Betty, 39, and a 48-year-old man were walking out of Lions Food Market at 640 Auburn just after 7 p.m. Betty later died.
Surveillance shows Santos getting into a white Chevrolet Equinox.
Santos, who is from Pontiac, has been charged with first-degree murder, assault with intent to murder, and two counts of using a gun during the commission of a felony.
Troy Dwayne Santos
Santos has prior convictions for unlawfully driving away an automobile and domestic violence. He also has two warrants from the Friend of the Court for unpaid child support.
Authorities said he should be considered armed and dangerous.
A reward of up to $2,000 is being offered for information that leads to Santos' arrest.
Anyone with information is asked to contact Crime Stoppers at 1-800-SPEAK-UP or 1800SPEAKUP.org.