Would that really matter? If I'm on the pro gun control side I don't think it matters to me whether a mass shooting was gang related or not, just that it occurred and would be less likely with proper gun control. 

hes already tweeted about it at least an hour ago

A godless atheist strikes again...

The majority of mass shootings are by U.S. cititzens. Also a Mexican doing a mass shooting in a church? Highly unlikely.

If guess based of statistics, the shooter is most definitely White>Black>Islam extremist. 

If the priest had a gun, this could've been prevented.
-NRA

This sentence doesn't make any sense....

Clearly you doesn't know that atheist actually means "without god".

And of course that countries like the UK, Japan, and Australia where gun control has largely worked are basically on another planet compared to the US and so have no baring on the discussion. 

I think a lot of people on the anti-gun control side would agree with reasonable measures such as registration, curbing sales within gun shows or in some way keeping track of these as well as standard gun sales, and working to keep guns out of the hands of the mentally ill. The issue is that they are concerned about the slippery slope that we may come to if any gun control were put into place. My argument is that we're already on the slippery slope, but in the opposite direction where even reasonable gun control is being taken away. We should be working towards a happy medium or compromise in which everyone is a little bit happy (just got done watching Stranger Things 2 so that phrase is on my mind). 

I never said  he didn't.

"No Way to Prevent This" Says Only Nation Where This Happens Regularly 

You know what we need? Looser gun control so any Joe on the street can get a semi automatic or an automatic capable of pulling off a mass shooting in seconds!