The loud music reference is definitely not "matter of fact", and it isn't even "controversial", it's ridiculous. Arguing from the specific (one incident) to the general (every similiar circumstance) does not work. It's like saying "Osama bin Laden was Muslim and he was a terrorist, therefore all Muslims must be terrorists."
The fact of the matter really is this: murder by firearm causes less than 1/3 of the number of deaths caused by traffic accidents. Should we ban cars?
And before you ask about suicides, consider: If someone is to the point where they are going to take their own life, and they don't have firearms available, they will come up with some other way to do it.