Apparently pets are in far more danger than people at the moment.
Please compile statistics from the stories, access the reliability of the stories, then we're talking. Right now, it's just a hypothesis, with strong pointers.
Remember, it is easier to convince a human with a compelling story than it is easy to convince someone with statistics. This is called the "narrative fallacy", a term coined by Nassim Taleb.
Anyway, the purpose of my initial post in this thread is to promote fear inoculation. I hope whenever you guys saw a story in the mainstream media about a massacre, you'll remember my post and knows how overblown it is and tell your parents, your kids, your spouse, your friend, until death statistics become common knowledge that the media will say "this is a novel mass murder incident".