Link from Wikipedia that has some information:
https://en.wikipedia.org/wiki/Peggy_Hettrick_murder_case
Have listened to the podcasts and looked around the internet. It helps to set aside all the information about the arrest and wrongful conviction of the teenage boy who lived nearby. Same with the subsequent legal problems involving some LE and prosecutors after the wrongful convictions. They're interesting, but not much help in trying to learn facts about Peggy's murder investigation.
Some information gleaned:
Peggy didn't own a car, she walked everywhere, regularly.
She had gone out for a drink after work. Went home but couldn't get in because her temporary (female) roommate had locked the door. Returned later and got in, changed her clothes and went back to the Prime Minister bar.
She called and wanted to meet with her ex-boyfriend. He was at the PM bar with a new girlfriend. She had talked to him some in the parking lot, its believed that's when his touch DNA was transferred to her clothing.
She left the PM bar after midnight to walk home. On the way she was attacked and killed.
Her body was found the next morning by a bicyclist, in a field just a few blocks from the PM bar on the route she would have taken to walk back to her apartment.
Ex-boyfriend had alibi from woman he was with at the PM bar who had gone home with him and stayed until about 3:30 am.
Blood evidence experts believe she was stabbed inside someone's car as she was trying to escape. A scuff on her boot looked as though it had been dragged along pavement as she tried to get out of a car going at a low speed. Stab wound in her back (the only one and the fatal blow) indicated she bled to death while sitting against a solid vertical surface. Holes in jacket and blouse were off about 2" from the wound, indicating someone grabbed her jacket from the left and stabbed her, possibly as she was exiting the car.
Same experts theorize that, after stabbing, she was taken elsewhere, sexually mutilated then washed up and dumped in the field where she was found.
Footprints in the field showed someone dragged her there. Shoe prints were from a pair of Thom McCan man's dress shoes. Based on drag marks, some speculate her body was dumped by two men. No information on whether there were more than one set of footprints. Assume LE still has this info and are not releasing it?
Suspect later surfaced when a Dr. Hoffman, who lived nearby the body dumping scene, was arrested for having cameras in the restroom of his home, with films of women using the restroom there. He was reported by a young woman who was house sitting for the family and found them. He had a stockpile of films of women's vaginal areas, as well as bags of women's personal items, jewelry, etc. His master bedroom window overlooked the field where Peggy's body lay. After his arrest for the obscene peeping videos, he went to a Denver hotel where he committed suicide using an IV drip of cyanide.
All evidence from Dr. Hoffman's arrest and search of his home was destroyed by LE.
Later examination of Peggy's clothing by experts in touch DNA determined the touch DNA from her ex-boyfriend was found inside the waistband of her slacks.
IMO, the Dr. Hammond suspect seems very likely given the proximity to the crime scene, the genital mutilation and his fetish with women's vaginas. Crime records indicate the perp zig zagged a bit before placing Peggy's body facing east, where it would be visible to his master bedroom window. He also didn't go to work to perform scheduled eye surgeries the day after Peggy's death.
The 6th podcast of the reporter hints that her ex-boyfriend may still be suspect, given his touch DNA found on the inside of Peggy's waistband. If so, how was he able to get the woman he was with that night to give a false alibi. It didn't sound as though she had known him for very long.
Assume more can be learned from LE files, but not all of them have been released to the public, news media or other investigators?