The Bible predicts a time when all the nations will come under a single, very evil government. For that to happen, our constitution, particularly the bill of rights, will have to disappear. We don't know when it will happen, of course, and people have been trying to figure out when for centuries. We can't know when, but we can recognize conditions that will have to happen for it to occur. If enough of these shootings occur, even conservatives will start to demand that the 2d be eliminated.
If most of these nut cases are video games addicts, we can't lay the blame on Trump. It's Bill Gates' fault.
