4 years ago1.5K views
Meirhofer's name is changed to "Masterson" for this episode.
Between 1967 and 1974 David Meirhofer murdered at least 4 people in Montana, 3 of them children. He was the first serial killer to be investigated using the FBI's "offender profiling" technique. The "profiling" unit at the FBI was fairly new and still in development at the time.