Dennis Lynn Radar (born March 9, 1945) is an American serial killer and mass murderer who murdered ten people in Sedgwick County (in and around Wichita, Kansas), between 1974 and 1991.
He is infamously known as the BTK killer or BTK Strangler. BTK stands for ‘bind, torture and kill’ this became his fabled signature. Radar’s first documented killing occurred in 1974 in Wichita.
The Otero family were new to the area (Joseph Otero, Julie Otero, Josephine Otero and Joseph Otero, Jr). Evidence suggested that his primary victim in this case was that of Josephine Otero aged 11. However, January 15 1974, he murdered the entire family residing in the house.
Here are the documented details concerning this shocking massacre.
Radar suffocated the 38 year old father of two with a plastic bag, he then proceeded to strangle 34 year old Julie Otero with a rope which he had in fact bought along with him to the house for the obvious purpose of physical restriction and strangulation. Radar also suffocated 9 year old Joseph Otero, Jr. Additionally the murder of Josephine Otero appeared to be the most prolific. Radar took 11 year old Josephine downstairs and hung her from a drainpipe in the basement using a rope. Whilst watching the life drain from Josephine he masturbated over her dying body.
It is apparent that he obtains an unusual sexual gratification from females dying before him due to his physical interaction. But did this amount to a sexual motive? The purpose of this post is to delve into the surrounding details and evidence found during his murderous reign in order to identify a possible reasoning for his acts. I accept that it will never be possible for another human being to actually know why serial killers murder people. However, it is possible to compare each murder he committed and identify a possible pattern between them allowing us to try and piece together a potential mind set which Radar may have been experiencing.
Along with the murder of the Otero family, Radar claimed 6 other victims. The next murder did not occur until 9 months later (October, 1974).
Unfinished please be patient