Cop was wrong
The wiretapping case was thrown out, as it should be. Which is what the article is about.
What infuriates most about this story are the actions of the out-of-uniform, off-duty in an unmarked (likely personal) vehicle that pulled his weapon for no reason. I know plenty of current and former police officers, and their response hasn't been supportive of this guys actions.
As someone else pointed out, by the time the officer had exited his car there was already a marked patrol car on the scene. There was no point in him being involved. If he witnessed a crime he should have called it in and then waited for the officers authorized to make the stop to do their job. He would then be required to testify in court to the offense.
From there he failed to identify himself. He made the assumption that both the citizen and the patrolman that was in his line of fire would recognize him as an officer, and there was no reason for him to think that. While the motorcyclist possibly broke several traffic laws, NONE them justified deadly force. This video is a tutorial on how NOT to do a traffic stop.
As for those of you with your ignorant bias towards Americans. Not everyone owns a gun. Most that do own guns do not carry them. They are purchased for hunting, sport (target shooting), and home protection. Those that do have the option to carry don't regularly do so because guns are heavy, awkward, and require restraints on your activities. No carrying in banks, gov't buildings, or ANY privately owned semi-public space where prohibited by the owner. (work place, retail store, etc) If you don't look like a paper target and aren't breaking into my house, you aren't likely to ever even see my 9mm.
Of course there are those that carry guns illegally, but that isn't unique to America.
As to traffic officers getting shot all the time, that's a statistic presented by people who have no clue about the facts. Rarely do officer pull their weapon on a traffic stop. Other than on TV, I have never seen it happen.
Also, traffic officers are not afraid of cameras. Nearly every patrol car in America has a dash cam now. They are more likely to be used to back up an officer's testimony than used against them.