Former quarterback Steve McNair and girlfriend shot to death

Former NFL quarterback Steve McNair was killed in a shooting in Nashville, Tennessee, authorities said Saturday.

The woman has been tentatively identified, but her name is not being released, authorities said.

A law enforcement source close to the investigation said the woman is McNair's girlfriend and that the residence is her condominium in downtown Nashville.

Witnesses said he was a frequent visitor there.

Authorities were questioning people who were near the home, but they said no one was in custody.

They could not provide details as to the circumstances of the shooting.

McNair's brother, Fred, also confirmed the death but had no immediate details.

McNair, 36, spent 13 seasons in the NFL, the majority with the Tennessee Titans, before announcing his retirement in April 2008. He spent his last two seasons with Baltimore Ravens and he was the NFL's co-MVP in 2003.

The owner of the Titans, Bud Adams, Jr., said in a statement that the organization was "saddened and shocked" to hear of McNair's death.

"He was one of the finest players to play for our organization and one of the most beloved players by our fans," Adams said.

"He played with unquestioned heart and leadership and led us to places that we had never reached, including our only Super Bowl."

The Titans marked a Super Bowl loss to the St. Louis Rams in 2000.

McNair attended Alcorn State in Mississippi.