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.

When the point that someone on death row was saved by DNA is brought up, it shows that system works because it has saved their life.
Valid

Like i said, it it takes more than opinion to make me believe something so prove it not by opinions but by sources that supports the point you are making in relation to the same studies.
Invalid

The life sentence really needs to be for a life time not only 30 years or what ever it is, but the death penalty is no morally or ethically correct.

Valid

