Murder of Mary Crupper Update

47 year old Mary Crupper goes missing on September 5, 1979 while running to the grocery store. Multiple abductions attempts had been made on women that same night. Was someone targeting women at grocery stores in south central Kansas? David Courtney is arrested im Wichita, KS in 1980. Letters in his vehicle detail a deadly cross country trip with his wife. https://www.newspapers.com/image/696297691/?clipping_id=130037302&fcfToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmcmVlLXZpZXctaWQiOjY5NjI5NzY5MSwiaWF0IjoxNjk0MTk2NTE2LCJleHAiOjE2OTQyODI5MTZ9.6wIaE1t3QXOGA5vTkN7brbXQOflNSPv6Z_g4hBQpWF0 https://uncovered.com/cases/mary-crupper-wichita-ks