It's harder to get away with crimes today than it was 20 years. Advances in fingerprints, surveillance cameras, DNA, electronic records, etc. all make it much h

It's harder to get away with crimes today than it was 20 years. Advances in fingerprints, surveillance cameras, DNA, electronic records, etc. all make it much harder for criminals to repeat and much riskier for those who start. A perfect example is the decline in serial killers. Even if people are as bad or crazy as they were in the past, getting away with killing 5, 10, 15, 20 people is incredibly more difficult now than it was years ago.