Complex sentence: Intamin was also partially blamed for the ride's safety system allowing the train to be dispatched without all the restraints properly secured as well as the victim himself for not notifying the operators of his condition.
Split into simpler sentences: Intamin was also partially blamed for the ride's safety system allowing the train to be dispatched without all the restraints properly secured. Some blame was also attributed to the victim for not notifying the operators of his condition.