Max didn't attempt an assassination, but he killed Lem by defending him.
If Max didn't attempt an assassination, then what was he doing? There don't seem to be any other bodies... did he go back to his peaceful allies again?)
Added 2 minutes later
You need to think before you try to test someone's reaction and decide to judge them based on psychology. It will be a lesson.
Yeah... by the way, I immediately removed both you and him from the list of bad guys...
There were reasons for that after the first night.