give someone that's natural so that it's not detectable after they have a heart attack. >> miss somers, please raise your right hand. >> and then the much anticipated showdown. daughter versus father. after years of digging, collecting, and persuading others that her father was an evil, guilty man, alexis was about to take the stand. but the defense was about to argue alexis had her own problems with the truth. >> coming up. the doctor's defense. >> you still conclude that the manner of michele macneill's death is undetermined? >> yes. >> when dateline continues. hen dateline continues with voltaren arthritis pain gel. my husband's got his moves back. an alternative to pills, voltaren is a non-steroidal anti-inflammatory gel