Russell Williams - Don't Get Your Panties in a Knot

How could things go South so quickly?  This guy was a well accomplished pilot, a Colonel and Master of Defense for the Canadian Military... until, he started stealing panties and putting on fashion shows for himself.  It all went downhill from there, how could a person so well thought of, holding such a high ranking position, become such a nefarious, perverse creep?
 
References:
https://thecinemaholic.com/russell-williams-where-is-the-killer-now/
https://macleans.ca/news/canada/russell-williamss-wife-knew-he-was-a-predator-victim/
https://www.cbc.ca/news/canada/williams-s-murder-victims-pleaded-for-their-lives-1.919706
https://www.cbc.ca/news/canada/col-russell-williams-timeline-1.913312