As I mentioned before, we don't know when the recording started and ended. I think the only part of what happened that was caught on video was the last part of it when they were in view of the cameras. A lot could happen prior to that point that would not be seen and that could be what caused the end result.
I'm going to relate a situation that happened to a cop I worked with. He was on patrol when an APB came out for a car, including description and color. He was on the expressway when a car that somewhat matched the description except the color was wrong. But, in his mind, everything else fit. He hit the lights and pulled him over to the side of the road and radioed in to let them know he made the stop and wanted more descriptive information about the person in question.
Before he could put the handheld speaker down, the guy had sprung out of his car and was standing at the driver's side window of his unit, holding a 9mm handgun. Since the window of his unit was open the guy looked at him and told him to hand over his gun, or he was going to shoot him. Larry knew how dangerous the man was because of the response he'd just been given over the radio.
"Okay! No problem." Larry said, reaching slowly towards his holster. At the last second, Larry pushed back on the seat and began drawing his gun. The suspect pulled the trigger and hit Larry on the left side of his chest. The bullet went in, followed the rib cage and came out on his right side just below his rib cage. By then Larry had pulled his .357 out and started shooting through the car door. He fired 3 shots and the man fell. Larry pushed the door open and saw that the man was alive and reaching to retrieve his gun. Larry got out of the car and at point blank range fired a round into the man's head killing him instantly. Larry shot him technically while he was unarmed but did it because his concern was that he was going to die and this man would get away and harm others. In fact, he had just shot and killed two clerks in a 7-11 store less than 10 miles from where this stop was made. It wasn't the first, because the man had hit two other convenience stores prior to this and put both clerks in the cooler where he shot and killed them. He was leaving no witness trail.
A woman driving by arrived at the time that Larry was standing over the suspect and saw Larry shoot him in the head. She saw nothing else and as soon as she got home, she called the police and said she saw a police officer murder a man on the highway for no apparent reason. She also called a newspaper office and said the same thing. Of course, even then, it went viral in respect that one newspaper printed the unsubstantiated story that from what she saw was factual. But, it didn't cover the totality of what happened. Larry knew that if he got to his gun the man would kill him and he knew he himself was going to black out.
I was the second officer to arrive on the scene after it happened. It was easy to piece together what had transpired.
But let's look at the same thing in today's day of videos and media. The video related to Jacobs is exactly the same as what happened with Larry. The woman saw the end result just like the woman saw the end result, but nothing that transpired before that was recorded. Fortunately for Larry, his word was good about what happened because he'd been shot. IF he hadn't been, the woman's words would have carried a lot of weight. Josh does not have a video to back up what happened prior to the video.
I'd do everything I could to stop the release as well. If you can't get the whole story and get it straight, don't use a "film clip" of an event and call it the scope of what happened.