It happened just before noon Saturday, October 1 near the entrance of the store on Brightleaf Blvd.
Benjamin Moye, of Newport News, Virginia, allegedly told investigators he mistakenly hit the accelerator instead of the brake.
Moye's Chevrolet Silverado pickup truck tore through the crowd at the store entrance.
Lois Shannon, 73, Debra Holmes, 53, and Jeanna Holley, 35, all of Smithfield, were taken to Johnston County Memorial Hospital.
Shannon later died. Holmes and Holley were released from the hospital two days after the crash.
Police said Moye was issued a criminal summons and released Tuesday. He is to appear in Smithfield District Court on November 8.