Marissa Alexander had never been arrested before she fired a bullet at a wall one day in 2010 to scare off her husband when she felt he was threatening her. Nobody got hurt, but a Florida judge was bound by state law to sentence her to 20 years in prison.Alexander, a 31-year-old mother of a toddler and 11-year-old twins, knew it was coming. She had claimed self-defense, tried to invoke Florida's "stand your ground" law . A jury found her guilty as charged: aggravated assault with a deadly weapon. Because she fired a gun while committing a felony, Florida's mandatory-minimum gun law dictated the 20-year sentence.Her case in Jacksonville has drawn a fresh round of criticism aimed at mandatory-minimum sentencing laws.



