Police: Sahel Kazemi Killed Steve McNair, Then Herself

Police in Nashville, Tenn., say their investigation of former NFL star Steve McNair's murder "clearly points to a murder-suicide" at the hands of Sahel Kazemi.

Medical examiner Dr. Feng Li says preliminary test results conducted in the football player's death show his girlfriend fired the gun that killed both of them.

Feng conducted autopsies on the bodies of Steve McNair and Sahel Kazemi, and is able to make the determination from the crime scene investigation, police interviews, the autopsy findings and preliminary lab results, including a gun residue test.

Moreover, police have now revealed the following:

• Sahel Kazemi told friends her life was "all messed up" and she was "going to end it all" before the incident early July 4.
• Kazemi was stressed out - she had two car payments, her roommate was moving out and she recently began thinking McNair was seeing someone else (he was actually married, since 1997, to Mechelle McNair, and had four kids).
• The shell casings match the weapon purchased by her the same week of the shootings and there was trace evidence on her left hand.
• The lack of struggle, Steve's position on the couch and the trajectory of the bullet leads police to believe that McNair was "likely asleep" on the couch when he was shot four times (once at point blank range) and killed.

So neither McNair's wife, nor Sahel Kazemi, knew about the other? Could this astonishing fact have filled the lack of motive that police were struggling with?