mark mcnett with metro to see chris owens. >> the district attorney's goal is to look over the facts of the case, play devil's advocate, and ask the kind of questions that they're going to be facing when it goes to trial. i have an 80-year-old father. if my 80-year-old father tells me i don't really remember specifics from two weeks ago, i believe it. >> during the interview he has no problem recalling that at 5:00 that afternoon she went to the store to get some groceries. she returned. she made dinner for them. they watched "driving miss daisy" and he went to bed at 10:30 that night. >> what about motive? did he have any motive? did he invite her out? >> yes. >> he arranged for her to come out. >> yes. >> do we have any indications that they were fighting prior to this? >> they've never gotten along. they haven't had contact, consistent contact, in years.