Those in the workplace whether it be an office, department store, fast food, or corporation should never have to fear for their safety. From the time you clock in, to the time you clock out, there should be no worry about getting back to your homes and families unharmed. Unfortunately, those who worked at the Xerox Corporation of Honolulu, Hawaii in 1999, would never feel safe at work again after an employee walked into the building with a loaded semi-automatic weapon tucked under his shirt.

SOURCES: 
1) State v. Uyesugi (hawaii.gov)
2) Man Opens Fire in Xerox Office, Killing 7 - The New York Times (nytimes.com)
3) Byran Uyegusi | Murderpedia, the encyclopedia of murderers
4) The Chilling Story Behind The Worst Mass Shooting in Hawaii | by The True Historian | Lessons from History | Medium
5) Massacre's 20th Anniversary: Lessons from the Xerox Murders | Hawai'i Public Radio (hawaiipublicradio.org)
6) The Xerox Murders — Examining Workplace Homicide — Crime Library
7) Delusional Disorder: Causes, Symptoms, Types & Treatment (clevelandclinic.org)
8) Honolulu Star-Bulletin Local News (starbulletin.com)
9) Peter Brent Mark (1953-1999) - Find a Grave Memorial
10) John Keiji Sakamoto (1963-1999) - Find a Grave Memorial
11) 20 years ago, a killer shattered the morning calm and changed Hawaii forever (hawaiinewsnow.com)