75: The New Bedford Highway Killer: serial killings still unsolved 34 years later

In 1988 in New Bedford, Massachusetts 11 women went missing over the course of just 6 months and over the coming year, 9 of their bodies would be found alongside major roads leading out of the city. Despite a number of good suspects in this case, investigators were slow to realise something was going on under their noses and therefore the case remains unsolved to this day.