>Gruesbeck was driving a one-man lift when he struck his head on an overhead conveyance system, Amazon said. According to the company, he was working to fix a j

>Gruesbeck was driving a one-man lift when he struck his head on an overhead conveyance system, Amazon said. According to the company, he was working to fix a jam on the conveyor and was trained on how to use the lift. It sounds like it was something that would be difficult to foresee. Without seeing the entire picture, it would be pointless to speculate beyond that.