NASHVILLE, Tenn. - Investigators have yet to classify the death of 20-year-old Sahel Kazemi, three days after she and former NFL quarterback Steve McNair were found dead in a downtown condominium McNair rented.
The 36-year-old McNair was shot four times, twice in the head and twice in the chest. His death was quickly ruled a homicide.
Kazemi died from a single gunshot to the head.
Under her body was a gun she purchased less than two days before their deaths and just hours after she was pulled over and arrested for driving under the influence.
Investigators were waiting on ballistics tests on the weapon before issuing a ruling on Kazemi's death.
Dr. Bruce Levy, Chief Medical Examiner for the state of Tennessee, said Tuesday while murder-suicide is the most likely scenario, investigators have been hesitant to conclude that because Kazemi didn't appear to have a motive.
He said the gun purchase, which Metro police revealed Monday, is a strong indication Kazemi was responsible but her apparent lack of motive has investigators exploring every possible scenario including the unlikely possibility that a third party committed the crimes and staged the scene to look like a murder-suicide.
McNair and Kazemi had been dating for several months and their relationship lacked typical indicators of trouble, such as concerned family members, police reports and protection orders.
Kazemi's family has said she was very happy.
"She just had it made, you know, (with) this guy taking care of everything," Kazemi's nephew Farzin Abdi said on Monday.
Kazemi's neighbors said McNair frequently visited the Hermitage apartment complex where she lived and never saw her upset or arguing with anyone.
"I have a hard time believing she would've done something like [this]," neighbor Reagan Howard told News 2 Monday.
Dr. Levy said of the four gunshot wounds McNair sustained, one, to the head, was within inches of his body.
He said the other three, a second to the head and two to the chest, were shot from a distance of three feet or greater.
He said the gun that killed Kazemi was in contact with her skin when it discharged.
Police have declined to release the caliber of the semiautomatic pistol found at the scene or the name of the person Kazemi purchased it from.
Aaron said the case may not be as neatly resolved as people would like.
"It may be we'll never know exactly why this happened," he said.