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

There are a number of factors that may have contributed to the ability of some serial kill ers to get away with murder in the 1 9 7 0 s and 1 9 8 0 s . One factor may be a lack of modern for ens ic technology and techniques , which were not as widely available or as s oph istic ated at that time as they are today . This may have made it more difficult for law enfor cement to collect and analyze evidence that could help identify and catch serial kill ers . \n \n An other factor may be the lack of public aw aren ess and understanding of serial killing as a distinct phenomen on . In the 1 9 7 0 s and 1 9 8 0 s , serial killing was not as widely recognized or studied as it is today , and many people may not have been aware of the patterns and characteristics of serial kill ers . This may have made it more difficult for law enfor cement to identify and investigate serial kill ings , and for the public to understand and respond to the threat pos ed by these off enders . \n \n It is also worth not ing that some serial kill ers may have been able to get away with murder due to a lack of effective investigation and pro sec ution by law enfor cement . This may have been due to a variety of factors , such as a lack of resources , a lack of training , or a lack of political will . \n \n Over all , the ability of some serial kill ers to get away with murder in the 1 9 7 0 s and 1 9 8 0 s was likely the result of a combination of factors , including the limitations of for ens ic technology and techniques , a lack of public aw aren ess and understanding of serial killing , and in effect ive investigation and pro sec ution by law enfor cement . </s>