1.The Clinton Kill List is full of people who weren't even actually Hillary's enemies. If a Clinton fund raiser died in a plane crash, they add it to the list. Why? If the deceased are accused of actually being Clinton's enemy, it's usually something like "they were planning to reveal her crimes (to who? when? where?)" etc, etc.
2. The methods of their alleged assassinations would have been ridiculously complex for Clinton to pull off and get away with. It's claimed she's responsible for crashing 16 different airplanes. And investigations revealed nothing? Yeah, OK.
3. The Clintons clearly don't rule America with an iron fist. Hillary couldn't even beat an orange reality tv show host in an election.
Now compare that to Putin:
1. He is an actual autocrat who has ruled Russia for 25 years.
2. The people who have been killed were actually outspoken critics.
3. The methods of killing are usually identical and ridiculous to have all been an accident. Falling out of windows isn't really all that common. Or they're so specialized, like with Litvenenko, it's pretty clear where it came from.