Since a dramatic peak in the 1980s, serial killers in the U.S. like Ted Bundy and Jeffrey Dahmer have been in decline for three decades. Experts have a few theories that can help explain why.
In the book Freakonomics they made the argument that the sudden decline in crime in the late 90's appeared to be tied to Roe v. Wade. I wonder if this is similar.
A large percentage of serial killers suffered from childhood abuse and trauma. Kids in the foster system are often abused and traumatized. I can see it.
It's the same quality of scholarship as a Malcolm Gladwell book - namely, none. On the one hand it's a shame these kinds of books are bestsellers, but I guess it's good that people are reading books at all. Most of the people I know stopped reading in their mid-20s except for poorly written "news" articles online that can be completed in a couple minutes or less.
Later researchers found a coding error and pointed out that Mr Levitt had used the total number of arrests, which depends on the size of a population, and not the arrest rate, which does not. Others pointed out that the fall in homicide started among women. No-fault divorce, rather than legalised abortion, may have played a bigger role.