PRAGUE — As Slovakia held a day of mourning Thursday to honor the victims of Monday's violent rampage in the Slovak capital, Bratislava, a picture began to emerge of the killer, an unemployed loner who the police said had participated in shooting contests and may have harbored resentment against his Roma victims. The killing spree, in which six members of a Roma family were killed — including a 12-year-old boy — has shaken Slovakia, a small and predominantly... (GunPolicy.org)