We would like you to assess the QUALITY of each of the following argument (discussing Death Penalty) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of death penalty. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of death penalty.

therefore the death penalty should not be used, simply because it kills innocent people.
Valid

If there ever was a deterrent to crime I'd hope being in genpop would be it.
Valid

If I ever "murder" someone without cause, I would deserve to die.

Valid