This is not a comment on innocence or guilt, or on who is or isn't nice. It's not a comment on right or wrong.
It's just an observation on power/wealth and the dynamics surrounding it. The wealthy and powerful need to show that killing them is not going to pay off, so they'll devote significant resources to producing that show.
Your attention is already on Mangione. That's the show that needs to go their way.
The sad part here is that @pluralistic offers a way out at the end of his story.