Beyond its grim death toll, the fatal rampage by a female ex-postal worker in California was striking as an exception to the rule. Among the many high-profile workplace shootings in the United States over the years, virtually every perpetrator was male. Several experts in homicides and workplace violence said they knew of no other case in which a woman, aggrieved over some job-related problem, had killed as many people as the five gunned down at a Goleta, Calif.,... (GunPolicy.org)