“Mayors Against Illegal Guns continues its push for commonsense gun law reforms today with a new ad and research highlighting the disturbing link between violence against women and guns. The ad features Elvin Daniel , a gun owner and NRA member whose sister Zina Daniel was murdered in the Brookfield, Wisconsin, spa shooting in October 2012. Several days after she obtained a restraining order against her violent estranged husband – which made him a prohibited purchaser – he bought a semiautomatic handgun from a private online seller without a background check, which he used the next day to murder her and two other people.”