Quellen:
https://www.latimes.com/local/la-me-santa-shooting31-2008dec31-story.html
https://www.latimes.com/archives/la-xpm-2008-dec-27-me-santa-shooting27-story.html
https://www.pasadenastarnews.com/2018/03/14/survivor-of-covina-christmas-massacre-to-join-protesting-students-in-pasadena/
https://www.nbclosangeles.com/local/new-information-in-christmas-eve-rampage/1851691/
https://www.theage.com.au/world/emergency-call-reveals-terror-of-santa-gunmans-rampage-20081227-75vl.html?page=-1
https://www.morgenpost.de/vermischtes/article103639022/Weihnachtsmann-Killer-wollte-eigene-Mutter-toeten.html
https://en.wikipedia.org/wiki/Covina_massacre
http://murderpedia.org/male.P/p/pardo-bruce.htm
https://youtu.be/UYOOa2ZUdOk
https://www.oxygen.com/martinis-murder/covina-massacre-santa-suit-bruce-pardo-ortega-family
https://www.huffpost.com/entry/covina-massacre-survivor-healing_n_5771b300e4b0dbb1bbbbbc9b
http://leticiashope.com/about/