How did serial killers get away with murder for so long in the 70s and 80s?

Serial kill ers in the 7 0 s and 8 0 s were able to get away with murder for several reasons . One reason was that law enforcement agencies did not have the technology and resources they have today to track and app re hend suspect s . Additionally , there was a lack of awareness and understanding about serial kill ers and their behavior , which made it difficult for law enforcement to identify and stop them . \n \n An other reason was that the criminal justice system was not as efficient as it is today . For example , fore ns ic science was still in its early stages , and DNA evidence was not yet widely used . This made it more difficult for prosecut ors to build strong cases against serial kill ers . \n \n Fin ally , there was a cultural shift in the 7 0 s and 8 0 s that made it easier for serial kill ers to operate . The rise of the counter c ulture and the sexual revolution led to a more perm iss ive and accepting attitude towards certain behaviors , including murder . This made it easier for serial kill ers to blend in and avoid detection . </s>