The Tennessean reveals that two days ago McNair’s 2007 Cadillac Escalade was stopped for DUI and police found a 20-year-old woman named Sahel behind the wheel. McNair, if I’m not mistaken, had a previous DUI conviction. The Escalade was towed by police from the condo as part of the investigation.
Police refuse to release the name of the dead woman but if it turns out to be Sahel and it turns out that first reports of a murder-suicide (with the woman being the shooter) are true before the police started talking “double homicide” then the pieces start to fit together.
We may never know what the shooting was about but it may be McNair was pulling a Sanford and the woman was blowing his cover by showing up on the police blotter in his car. That led to a fight which led to... The last part is speculation on my part but also note the police don’t seem particularly interested in looking for suspects, as if they have their story but they just can’t tell it until they complete the investigation. In a high-profile case, the police are smart enough to not say what they can’t prove.
BNO on twitter is confirming that the woman is Sahel. She died of single gunshot wound to the head and McNair suffered and died from multiple gunshot wounds.