Employers miss warning signs of violence By STEPHANIE ARMOUR, USA TODAY
In an average week in U.S. workplaces, one employee is killed and at least 25 are seriously injured in violent assaults by current or former co-workers.
Many of those attacks might have been prevented.
In nearly eight of 10 cases, killers left behind clear warning signs -- sometimes showing guns to co-workers, threatening their bosses or talking about attacking. But in the majority of cases, employers ignored, downplayed or misjudged the threat, according to a USA Today analysis of 224 instances of fatal workplace violence.