In the wake of Friday’s shooting at the Empire State Building of Jeffrey Johnson’s rage against his former boss, this causes us to pause and of course, grieve.

As we look at signs of a disgruntled co-worker, boss or direct report, it’s important to notice some red flags.

According to the Occupational Safety & Health Administration’s (OSHA) site, about two million American workers are victims of workplace violence each year and no one is immune. Read more