According to the revised checklist for traits of psychopathy (Hare, 1990), psychopathy has several signs:
Superficial charm
Manipulative
Lack of empathy
Impulsivity
These are some of the main traits but there are more as given in the supplied link.
It's important to note that not all psychopaths commit murder, and many are successful within business though due to the traits can lead to devastating effects on economy etc.
According to the revised checklist for traits of psychopathy (Hare, 1990), psychopathy has several signs:
Superficial charm
Manipulative
Lack of empathy
Impulsivity
These are some of the main traits but there are more as given in the supplied link.
It's important to note that not all psychopaths commit murder, and many are successful within business though due to the traits can lead to devastating effects on economy etc.
Hare et al 'The Revised Psychopathy Checklist: Reliability and Factor Structure' Available at https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.713.2163&rep=rep1&type=pdf