Police in the Northern California city of Vallejo say the gunman who opened fire at a nail salon, wounding a toddler and four adults, was targeting a 27-year-old woman getting her nails done.
Authorities still don't have a motive for Monday's evening shooting that spilled out onto the street.
Police say the unidentified shooter came into Tina's Nails and opened fire, striking the 27-year-old woman, the 2-year-old and her grandmother.
A man inside the store, 32-year-old Chester Landers, allegedly then pulled his gun and chased and shot at the gunman outside. Police say a third man with a gun also took part in the shootout.
Those wounded are expected to survive.
Landers was arrested on suspicion of being a felon in possession of a handgun.