I suppose you are talking about Richard Speck. He was quite gross.
Yes, it was Speck. I was absolutely horrified at the time as a young woman living in the city. I had also read Eldridge Cleever’s “Soul on Ice” in which he talked about raping white women if I remember correctly. My impression was that he had no emotion where the women were concerned and it was more about white men, so he did not go out of his way to seriously injure the women.