<sarcasm>Not that it makes any difference </sarcasm> - but a lot of HV transmisison wire is ALUMINUM too ...
You also know if one end of the jumper cable was anywhere near 'the ground', 'a ground', and he got anywhere near the high tension wire with the other end, he would be a french fry.
Still, what do you think he was trying to do? I.E. What was he going to hook the cables to on the generator end ? Or am I asking a stupid, doesn't matter he's dead, question ?