Police found some connections to the sisters’ deaths and another murder.s. In 1955, the brutal deaths of three young boys before the murder of the Grimes sisters played a huge role in the investigation. Of the evidence presented, the Schuessler-Peterson murders, was a crime that stunned and shocked the city. Three young boys had spent the day downtown seeing a Disney movie and never returned. Days later their nude and brutally beaten bodies were found dumped near a forest