Let's not blame it all on training just because that's what Forcillo was trying to use as his way out, it's most like his own incompetence combined with lack of some required oversight that was the root cause of this issue. He should have been assigned desk duty and put under some sort of coaching or some type of focused training when he already holstered his weapon a number of times prior to this incident raising alarms.
A friends cousin was shot to death in his own driveway by an OPP. No witnesses but after looking long and hard enough the cops found a perceived weapon. At the hearing / trial it came out that most cops hardly ever drew their sidearms but the cop in question had drawn his dozens of times. Many years ago and no cameras.