here's nbc's pete williams with more. >> reporter: when the the widow of jack wheeler looks at this recording of her husband appearing disoriented in a delaware parking garage two days before he died, one thing stands out. >> he looked afraid. >> reporter: but of what, kathy kleist says, she has no clue. >> i'm not sure what he was afraid of. >> reporter: police in delaware don't know either. or how his body wound up in a trash truck at the wilmington trash truck the morning of new year's day. now for the first time jack wheeler's widow and son are speaking out, agreeing to an interview just after attending his memorial service at arlington national cemetery. ♪ full honors for a west point graduate who served in vietnam and at the pentagon and was a driving force behind the vietnam memorial, visited by more than 4 million people a year. at the parking garage in wilmington, where he had a home, he wore no overcoat despite the bitter cold and carried one shoe. >> it's just bizarre. it's like watching a movie or reading a crime novel. except that it's your life and