The ironically aptly-named Electra Complex connection concerning the surrogate father and daughter pair of Nemo and Electra in Nadia: The Secret of Blue Water. All this has left a unpleasant legacy on very poor Iesada, even after her father dies: she's fearful to have sex at all (even with her trusted bodyguard Taniyama) and the poison is gradually killing her.
All of the victims were carrying slacks or blue jeans when they disappeared, and at many crime scenes there ended up sightings of a guy putting on a forged or a sling and driving a brown or tan Volkswagen Beetle. By his possess admission, he had by then mastered the necessary abilities-in the period before DNA profiling-to leave minimal incriminating forensic evidence at criminal offense scenes.