What does a Mass Shooting cost for the Government?

So I was wondering what does it cost for the government every time a mass shooting happens? I mean the shooting itself will result in damages from bullet holes or damages the car will make as a part of the rampage too. Also it will be very expensive I can imagine to send out all the ambulances and police and SWAT teams I know in Denmark calling an ambulance costs 833$ (but of course it is covered by the government in DK). The shooting might also result in disturbing peoples jobs if it´s a rampage style shooting (going from place to place), there will be hospital treatment to the injured and court appearances even if the shooter is dead and a lot of high profiled people will be involved like the prime minister/governor/president and I bet it cost a lot of money for them to take out the time to get involved in this. 

There are probably a lot more things but this was just to name a few of them I mean it wouldn´t surprise me if it would cost the government millions just to deal with 1 single mass shooting but is it documented anywhere maybe a member in here have more concrete evidence and if not I would like to start a discussion about it.

According to this article I found from a quick Google search a mass shooting with a double digit death count can easily cost up to hundreds of millions of dollars.

QuestionMark wrote:

According to this article I found from a quick Google search a mass shooting with a double digit death count can easily cost up to hundreds of millions of dollars.

Great article I didn´t even think about how much a person would earn in a lifetime because that is also money the government won´t get in taxes.