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.

Some human beings have proven they have forfeited the right to continue to breathe the same air as civilized people, PERIOD!!!
Valid

Since there is no clear evidence indicating that there is any deterrent value to the death penalty, I have trouble rationalizing it as a punishment.
Valid

In addition, it is evident that the death penalty does not deter murder rates.

Valid