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.

If a gun owner knowingly sells to a prohibited felon who commits a murder with the gun, then the felon alone is responsible for the murder.
Valid

Lying in compliance and trusting two criminals to feel that it's not necessary to harm anyone, or actually do something that can lead to stopping the dangerous individuals before they have the opportunity to harm someone?
Valid

The Supreme Court has agreed to hear a 2nd Amendment challenge to such draconian laws in Washington, D.C.

Valid