Police have confirmed that Steve McNair's girlfriend killed him before turning the gun on herself. The police said they may never know what was going through the mind of Sahel Kazemi, 20, when she shot McNair early Saturday. However, interviews with friends led detectives to conclude she was becoming increasingly distraught over events in her life. She was dealing with financial troubles, and detectives believe that McNair may have been seeing another woman. Police had earlier labeled McNair's death a homicide.