Ok. People have looked into the intent of presidential assassins before and there’s just no pattern. Some of them did it for political reasons (Booth, Czolgosz, Sirhan Sirhan). Some for personal reasons (John Hinckley Jr., Squeaky Fromme) and some were just completely batshit (Charles Guiteau). You could also put Hinckley and Fromme in the ‘completely batshit’ categories, but Guiteau was a level unto himself.
And then there’s Sam Byck, the guy who tried and failed to assassinate Nixon twice. He fits all those categories.
The point is, there’s just nothing to conclude here based on history and we will, barring the discovery of some sort of manifesto, likely never know what the intent was.