When wealthy lawyer, Tex McIver, shot his wife, Diane McIver, the case was rich with intrigue. It happened on a car ride while their friend drove them home. But what led to the gunshot that killed Diane is at the heart of the case against her husband. "48 Hours" correspondent Maureen Maher reports. This classic "48 Hours" episode last aired on 9/15/2018. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices