Barbara and Patricia Grimes cold case

Barbara and Patricia Grimes were sisters who lived in Chicago, Illinois until their disappearance on December 28, 1956. The girls aged 15 and 13 respectively left their home to go and watch Love Me Tender (and Elvis Presley movie) at a local movie theater. The girls arrived at the theater and were seen in line for popcorn at around 9:30pm. The movie ended at 11pm and the girls still had not returned home by 2:15am. The girl’s mother called the police and began one of the biggest missing person’s hunts in the history of Chicago state. The search was so big that even Elvis Presley himself issues a statement asking the girls to go home.

On January 22, 1957 however, the girls naked bodies were discovered by a construction worker named Leonard Prescott. The girls were found next to German Church Road. Much speculation took place by police and medical examiners as to when the girls died and what it was that killed them. The Chicago police crime lab confirmed however, that Barbara had been molested before she was killed.

Multiple suspects were interviewed and various eyewitness reports were made in the case, but none were found guilty and no reports (with the exception of the 9:30pm sighting of the girls) were ever substantiated.

This was around the time that Judith Mae Andersen was murdered in Chicago as well. I am going to do some research on this, and more on the Andersen murder.

Was Kaczinski still living in Chicago in 1957? Could this be the work of Bill Thoresen? Manalli and Kane were living in Illinois in that year I think also.

Are there any ties or similarities to the Judy Anderson murder on August 1957?