And there is only an hour left before they will kill Sam.

If he shoots at me, he has to kill Sam first.

But first, he was going to kill Sam.

Later he attempts to kill Sam with his rotor weapon, but misses him by a few feet.

Could she be far 'nuff gone to kill Sam?

Once she gave it up, however, the deal changed so she had to kill Sam as well.

He wrote that he'd kill Sam if I said anything.

She didn't add that he would also kill Sam.

He keeps looking opportunity to kill Sam, but all in vain.

Parker shot and killed Sam, leading him to jail.