premise: "We want (President) Mahmud Abbas to order that those responsible be found," he added.
  The closure of the Rafah crossing earlier sparked the storming of the border terminal by dozens of Hamas gunmen, which caused panic among travelers and sent European Union observers running from the building.
  At least 13 Palestinians were wounded by gunfire after the militants went on a rampage inside the terminal building, smashing windows and furniture and firing into the air and at the building itself.
  Israel had wanted to prevent Haniya entering Gaza with "tens of millions of dollars" he was carrying after his fund-raising trip because, according to an Israeli source, it believed the money would be used to finance terrorism.
  EU foreign policy chief Javier Solana, who deplored the deadly violence, said Haniya had deposited the money at an Egyptian bank.
   What made at least 13 Palestinians wounded?
hypothesis: deadly violence