It does regularly happen in the US and we are not informed. There is no mechanism for informing you or reporting on information from the interior of the US. There is a complete lockdown on information in your country. There are no more reputable journalists, no more reputable local news papers, no reputable national news organizations. 9/11 was your Reichstag fire and you don't even realize. Literally last week a military defense contractor whistleblower was killed. They're smart enough to kill these people early by police violence or pushing them into prison for made up non violent crimes before people are a problem.

There are over 2 million people incarcerated in the US, the largest number of any country in the world by far and one of the highest rate of incarceration by far. Your missing leaders are in there.

Interesting also that you picked out the point that the obvious assassinations happened 55 years ago and are demanding evidence from the past 10 years only as if you haven't had the same now geriatric people in charge, but said nothing about the fact that you extremely recently in the past 10 years electrified the balls of people which is internationally recognized as torture in a country you made up the reason for invading. People defending their homes just like the Ukranians were tied up in American black sites while they electrified their testicles and took pictures of it smiling. You think these people aren't willing to kill threats?