Someone, let's call him "John", confesses to you that he killed a cop recently. He explains that said cop was responsible for the death of his brother "Dave".
Dave was pulled over by the cop one night over a minor traffic violation. While talking to Dave about the traffic stop, the cop asked him if he was intoxicated. Dave denied. Then the cop asked him to step out of the vehicle. Dave complied. The cop asked him for permission to search his vehicle. Dave consented. While searching through the vehicle, the cop finds a small ziplock bag containing a gram of cannabis. The cop confronted Dave about it, to which he responded that he is a cannabis patient and that he can prove it with his medical card located in the center console. The cop responds, "Put your hands behind your back. You're under arrest." then proceeds to cuff Dave on the spot. Dave begins to resist while saying "For what? What'd I do?" The two begin to struggle while the cop repeatedly says "Stop resisting!" The struggle goes to the ground. Eventually, Dave gets loose and runs back into his vehicle. As he drives off, the cop pulls out his pistol and fires a few shots at Dave, but he gets away. The cop goes back to his patrol car and pursues Dave. He later finds the vehicle about 2 miles down the road, crashed into a tree with Dave slumped over the steering wheel. The cop, with his gun drawn, checks on Dave. He was unresponsive and later pronounced dead from bullet wounds to the back and neck area.
The entire incident was caught on the cop's body camera. All the evidence checks out, including the cannabis card. The toxicology results determine that Dave did not have any substance in him at the time and there were no alcoholic beverage found in his vehicle. His driver's licence and insurance was found in the glove compartment.
The cop did not get prison time but was fired from his job. A few weeks later, he was found dead in front of his house, next to his car. His killer has not been found. That killer is John, who sought revenge on the cop for the death of his brother Dave.
John reveals to you that he killed the cop, saying that he felt it was 100% justified. No one else knows about this except you and John.
QUESTION: Are you going to snitch on John? Or keep it a secret?