WITH: 1:31 Shoot-out video; beauty contest video...and 8 fotos.
Miss Woman of Sinaloa 2012...Maria Susana Flores Gamez, 20...involuntarily surrendered her crown...and her life.
She was gunned down by federal police during a firefight...while riding in a narco caravan in the village of El Palmar Real...in western Mexico.
4 others were also killed in the battle...2 officers, a civilian and her boyfriend.
Her family claims she was not involved with mafiosos...but was simply on her way to work.
Police speculate she was used as a human shield by the narcos...forced to hold a gun that was found near her body.
Gun residue tests will conducted on her hands.