Iron Man 2.0 #4

Last issue we learned that the Palmer Addley file provided by the military to James Rhodes' consulting team was a fake. Now Kaylie Harrison is being allowed to see the real file, in a secure location where she isn't allowed to remove or copy anything.

She learns that Gen'l Babbage and her employers Eastland Consultancy have been trying to get access. But now Tony Stark's influence has got her in.

Kaylie reads how he was a precociously intelligent child who grew up to be a shy outsider at school. And then a loner with a fixation on conspiracy theories about the government and media. The file ends with Addley shooting some people he believed were against him.

Presumably at that point the government secreted him away to make use of his high intelligence.