cops rarely are held fully responsible for their actions.
This.
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Also, many cops nowadays are trigger-happy fools. There was no need to sneak up on the house. They could have announced their presence and shined flashlights through the windows. This cop didn't follow procedures, MULTIPLE TIMES, and he should be held accountable. You can't go around shooting people at 2:30am, especially when the original call had NOTHING to do with criminal activity. If the 911 call was that the neighbor was shooting at people or had a hostage, then ok. But it wasn't even close to this and the officer ESCALATED the issue. DE-ESCALATION is the job of all officers; it's what they are trained to do. If they can't do that, they should not only be fired but be in jail.
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Police corruption is out of control, most of them protect each other (including bad cops) and many of them are masons, who use this protection to oppress the poorer communities. Make no mistake, this is all planned, and the bad masonic cops are using their immunity to wipe away the trust of the public in policemen and the justice community, just like the communists/masons wiped away the trust of priests/clerics using the child abuse scandals. Once you have a lack of trust in police, society delves into chaos and civil unrest. What a race war? What race rioting and murders? All of this is building up to such a situation. The poorer communities have many legitimate gripes with bad cops, and if you mix this with the communistic "community leaders" who are communistic masters of stirring up the population's emotions, you have a large-scale race war on the horizon.