Leo Held kills 6 at a paper mill in Lock Haven, Pennsylvania
Janitor goes “berserk” and kills 7 at Cal State Fullerton
John Felton Parish shoots and kills 6 in Texas after a pay dispute
USPS worker Patrick Henry Sherrill shoots 20 and kills 14
An unreturned workplace infatuation escalates to a rampage killing of 7 people
Joseph Wesbecker turns to mass murder at Kentucky printing company Standard Gravure killing 9 and injuring 12
Copier repair man Byran Uyesugi shot and killed 7 co workers at Xerox Corp in Honolulu
Doug Williams shot to death 6 coworkers and himself at Lockheed Martin in Mississippi
Female postal worker goes on a shooting spree at her former workplace and kills 6 before turning the gun on herself
Press operator Wesley Higdon shot and killed 5 people at a Kentucky plastics factory
Nidal Malik Hasan kills 13 and injures 29 in the worst Nidal Malik Hasan kills 13 and injures 29 in the worst shooting incident on a US military base shooting incident on a US military base
Warehouse driver Omar Thornton shot and killed eight co-workers at a Connecticut beer distributorship
Andrew Engeldinger opened fire at a Minneapolis sign-making business killing 6 before killing himself
UPS worker was fired after 21-years. He shot and killed two co-workers before killing himself.
Syed Rizwan Farook and Tashfeen Malik opened fire at a workplace holiday party killing 14 and injuring 22.
In Miami’s Coral Gables just last month two supervisors were killed at a trendy fitness club by a disgruntled trainer
