The gun found at the scene where former NFL quarterback Steve McNair and Sahel Kazemi were found, was purchased by Kazemi, police told The Tennessean.
The two were found dead on Saturday in a condominium owned by McNair. She had a single gunshot to the head and he was shot twice in the head. The gun was found under Kazemi.
A relative of the woman found shot to death with McNair said earlier Monday Nashville police told him she recently purchased a gun.
Farzin Abdi is Sahel Kazemi's nephew, but the two were raised together like brother and sister. Abdi says he does not believe Kazemi would have killed the former Tennessee Titans quarterback and herself.
Abdi says police told him they are almost sure the 20-year-old Kazemi was the shooter, but he says she had no motive.
Abdi says Kazemi believed McNair was divorcing his wife and she was preparing to sell her furniture to move in with him.