Authorities are still investigating the shooting that left the 69-year-old woman and her 23-month-old grandson dead. Their names haven't been released.
Detectives haven't released a motive in the shooting or what possible connection the victims had to the gunman, 55-year-old Timothy Wall, who turned the gun on himself after shooting them.
Timothy Wall
According to a timeline released by the sheriff's office, the gunman had made a purchase at the Publix around 9 a.m. Thursday and returned just before 11:30 a.m. using a golf club putter as a cane.
The gunman watched the victims, who had entered the store around 11:07 a.m., from across the produce section before he shot the child then got into a struggle with the grandmother, officials said. During the struggle, the gunman shoved her to the ground and shot her, before he shot himself.