he seemed to have little expression of emotion. >> dr. will carpenter, a research psychiatrist at the university of maryland was hired to give an expert opinion in hinckley's defense. >> i believed that i spent about 44 hours evaluating him. most of that would have been in interviews with him. he was self-centered, but he wasn't narcissistic. it was more like kind of a loner who doesn't have much else going on. and then would get grandiose ideas including delusional ideas. >> he made up a whole girlfriend for his parents for a year. she didn't exist. >> she seemed awfully real to him at times. but it was very much to manipulate his parents so that he could be off and doing what it was that he intended to do without their interfering. >> in the summer of 1980, hinckley read a story about jodie foster, the 18-year-old actress was taking a sabbatical from hollywood to attend yale university. so hinckley told his parents that he was going back to college. but at yale, not texas tech.