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.

And in an atheist's perspective, from our own morals, we should know that causing another death of a human being is highly unnecessary, considering that we all ready have them behind bars.
Valid

If we revisit your notion of intent you must needs consider that the firearm is just as capable of defense as it is offense.
Invalid

Some people facing the death penalty have been exonerated, sometimes only minutes before their scheduled execution.

Valid