We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) 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 gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.

Let me give you an example: If gun bans worked there would be no gun deaths in the countries that have banned guns.
The answer to this example can be: Valid
Here is why: It is an argument that claims that gun bans will not work.

OK. solve this:
Even if all gun sales were recorded the same way, it wouldn't have done any good if Cho had a clean record to begin with and chose to carry out the massacre regardless.
Answer:
Valid