hinckley had a seemingly normal childhood growing up in an affluent suburb of dallas, texas. he played sports as a boy and did well in school, but as he grew older, hinckley began to withdraw. his parents chalked it up to shyness. >> from the time hinckley graduated from this high school, highland park, as an adversary in 1973 until his arrest there was also a personality change. he had become quieter. more introverted, somewhat of a recluse. >> in 1973 hinckley moved to evergreen, colorado, with his parents. they hoped he would go to college. he did for a while attending texas tech on and off for a few years but never graduating. mostly he spent time in his room alone, writing gloomy poems and playing his guitar. ♪