so with the humor, it was smart. reporter: jazz instructor remembers a different side of loughner. one who played theality oh sack for the arizona jazz association and showed up for practice every weekend for five years. he was talented. when he was in eighth grade, he made our top middle school band. he definitely had talent, had ability. he had a good tone. he had a pretty good work ethic. he was very quiet, but very diligent. reporter: tideback says loughner s mother always came with him. he was quiet but had promise. he went on a trip with us to the fullerton jazz festival. he performed there won an award for outstanding solo. and after that year, he just didn t come back. reporter: those who knew him said he started to change a couple of years ago. it was unsettling. it was just like like fascinated and obsessed and always wanting, harry caray l i shooting? can we go tomorrow? we didn t want to take him. we didn t know what would