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.

What factors affect the demand, Mayor Bloomberg, of the criminals in your city for guns that provides such a large and profitable market for gun runners?
Valid

Secondly, as pointed out many times before - if you're comparing to the UK and the US, looking at violent crime rates is hardly a way to persuade anyone that the US has the right laws.
Valid

Sure you say guns don't kill people but people kill people, but the gun is only a tool or a means to that end.

Valid