Estimating the number of active serial killers in the U.S. is challenging due to the clandestine nature of their crimes and the complexities involved in linking cases. However, the FBI has estimated that there are between 25 to 50 active serial killers in the United States at any given time. 

This estimate is based on patterns observed in unsolved homicides and missing persons cases that suggest the possibility of serial offenses. It's important to note that these figures are approximations, and the actual number may vary

Certain professions, such as long-haul trucking, have come under scrutiny due to the mobility and anonymity they afford, potentially facilitating serial offenses across multiple jurisdictions. Investigations have suggested that some unsolved cases along highways may be linked to such individuals. 

While the number of active serial killers is relatively low compared to other types of violent crime, ongoing efforts by law enforcement aim to identify and apprehend these offenders to prevent further harm

Real life encounters with serial killers, from the pages of Quora https://ift.tt/vkhCWPF

Have you ever met a serial killer?

I was curious to hear stories from people who have actually met serial killers in real life, and Quora yielded a wealth  of readers stories. I've started recording them into podcasts. Episode one includes encounters with Ted Bundy.