You could point out that the death of Simon was as the result of an attack by all of the boys who simply mistook him for the beast. Jack did not atatck Simon by himself and he certainly didn't order anyone else to do it. You could also point out that Roger pushed against the lever, that caused the boulder to drop from the top of castle rock and knock Piggy from the causeway. Jack was nowhere near Roger and he didn't tell him to do it.
However you could also point out that Jack was indirectly responsible for both deaths. If Jack hadn't been so obsessed with being leader and hunting there would have been no feast on the beach. It was Jack who told the boys to 'do our dance' when the storm began to break. Because of Jack the boys were over excited and already involved in a pig killing dance when Simon stumbled out of the jungle. Similarly if Jack hadn't left the main group to form his own tribe, based at castle rock, none of the boys would have been there. Jack had placed Roger on guard and in control of the boulder. Jack had shown by his own actions that he wasn't concerned about rules or about using violence. His very manner of leadership had given encouragement to Roger's disturbed sadistic inclinations.
Simon retrieved Piggy's glasses for him, after they had fallen onto the rocks as a result of Jack punching Piggy.
Simon
How is Simon from lord of the flies?
Simon is a symbol of a prophet.
Simon represents Jesus Christ
the lord of the flies warn Simon of upcoming violence by referring back to the dreams jack and Ralph told the young boys were nightmares and how Simon foresaw the the beast
Simon's bower represents civilization.
stuff
In The Lord of the Flies Simon cares for and gets along well with the Littluns. He takes the time to care for the Littluns.
Jack, Roger, and the Littluns kill Simon when he shows up to warn them.
the thing that crawls out of the forest is Simon.
Simon was mistaken for the beast in "Lord of the Flies". He was killed by the other boys during a frenzied tribal dance on the beach.