FORT PIERCE, Fla. -- Police said a convenience store clerk is being held without bail on suspicion of attacking a boy in Fort Pierce, Fla., for not buying a yo-yo.

Amar Shreiteh is charged with attempted murder and false imprisonment. Police said he was working at Friendly's Meat and Grocery Store Monday morning when 14-year-old Jeremius Howard came in with his sister.

As the girl browsed for snacks, Howard allegedly played with a yo-yo.

Police said that after the girl paid for the items, Howard put down the toy and tried to leave the store. They said Shreiteh demanded the boy pay for the yo-yo, but Howard told him it was already opened and he didn't want it. Authorities said Shreiteh then punched the boy.

Investigators allege he pulled the teenager behind the counter and stabbed him on the back of his arm with a butcher knife.

Another clerk tried to stop Shreiteh and suffered a serious wound to his right forearm. The teen was treated and released. Shreiteh is currently in police custody.