Sorry about the bold formatting, I didn't have the copy quote function available.
Both the KK and Huntingdale victims reported one man and cops seem to have strong DNA evidence as well as eyewitnesses (the girls) from these crimes. Everything points to the accused, especially DNA.
Some other possible related assaults around Claremont that could be related were one and some were two attackers.
However with Jane and Ciara you don't have eyewitnesses and only with CG do you have some DNA... found on something in evidence on a later date, lost at another lab and tested in England or something like that. No eye witnesses that we know of. Although there was an eye witness that linked a guy talking to Jane on the night she went missing, to someone at or talking with Ciara when she went missing and matched the description of someone in Steve Ross's car with SS the night before she went missing. He was a blond guy, and I doubt whether the accused ever had blond hair.
You do have cctv on the nights both Jane and Ciara went missing. Ciara's has never been released to public. Many people including myself have looked at the JR vision for hours and hours. With the limited vision and quality released, it's not possible to clearly identify people, although witnesses that were shown the clear quality vision were able to. However it's possible to see the interactions between people suggesting the attacker (whether MM or others in the video) wasn't alone. I doubt the story told to the parents and am waiting for the Linda Donovan witness who appeared and was interviewed on the Crime Investigation video to appear on the witness list.