zlacker

Serial killing and mass killing aren't the same thing. I like to think of mass killing as "parallel killing." The "serial" refers to one killing event after another, whereas mass killing is lots of killing in single events.

Having said that, you are right - technology might be better at finding and stopping serial killers, but doesn't really do much at all for finding and stopping parallel killers. Mass killing is way up, so the article's conclusion is not really all that reassuring.