I’ve read before that the FBI estimates there are ~50 to 70 active serial killers in the U.S. at any given time. The problem is they’re incredibly sporadic and

I’ve read before that the FBI estimates there are ~50 to 70 active serial killers in the U.S. at any given time. The problem is they’re incredibly sporadic and sometimes go dormant for any number of reasons for months, years, or decades at a time.