Court records show that 41-year-old Leon Raymond Walls is being held in Allegheny County Jail, unable to post $250,000 bond.
Investigators say Walls ran into the store in the East Liberty neighborhood on Monday after a fight nearby. They say he slashed two men and stabbed and seriously injured the girl.
Police say she remains in serious condition with cuts to the back and arm.
Authorities say two men followed Walls into the store searching for him. Walls then allegedly ran toward the checkout lanes and grabbed the girl, who was standing with family members.
Court papers didn't list a home address or attorney for Walls.
