Intuitively, it seems to us that the killers are secretive, suspicious people whose asociality can be seen from a mile away. However, in fact, most killers are those who seemed completely normal to everyone before the moment of the crime.

Evolutionary psychologist David M. Bass conducted a shocking study: for 7 years, his team interviewed 5,000 absolutely ordinary law-abiding people from different countries and cultures. They analyzed more than 400,000 murders already committed and concluded that every person is capable of crossing the line.