No.
They get snatched up and kidnapped nowadays.
Actually, there are just as many serial killers per 100k as there were in 1950. But as population increases, so would proximity of one to you become more likely.
Actually, most serial killers would also be flashaholics, and likely active with online flashlight communities. They would likely drink lots of coffee, frequent coffee shops, own guns, and be a big incandescent advocate. They would be eventually swayed to try leds, but would go for the big 100 watt led worklight trophy. Eventually, I think, after buying the Tk75, they would find the usefulness of the HP25 quite handy for their task--flood for finding things & cleaning up blood, a touch of throw to find new potential grave sites. On the whole, they would eventually become largely a flood fan (with blood tracking green), as age will make finding the saws more of a problem.
...I think I watched one too many episodes of "Criminal Minds". Sorry.