Some stats for your question @freeman123

1% of the general population are psychopaths
Dr. Robert Hare, Criminal psychology researcher, Creator of the PCL-R

4% of Americans are sociopaths
Dr. Martha Stout, Harvard University psychologist
In the 2005 book, "The Sociopath Next Door" Harvard University psychologist Martha Stout claims one out of every 25 people in America is a sociopath. She defines sociopath as a person with no conscience.

5-15% of Americans are Almost psychopaths
Dr. Ronald Schouten, Associate professor of psychiatry at Harvard Medical School
Ronald Schouten refers to the "almost psychopaths" in his book "Almost a Psychopath"