What do you believe may link DF with the disappearance of Louise and the death of Jessie? Do you know of any connection that DF had with Eastbourne or Beachy Head?
The M.O. used, in terms of Jessie being taken alive to her place of death and her hands being tied using her bra, are a confirmed M.O. for Tobin but totally contrary to DF's M.O.
Tobin was also known to be in Eastbourne at the time of the disappearances and did a flit north of the border once Jessie's body was found. Neither would I be surprised if there are other elements of the crime, which have been withheld from the public, but which are specific to Tobin.
Without a cause of death it is very difficult to obtain a successful conviction. There would need to have been a plethora of circumstantial and/or forensic evidence. Sadly the best evidential opportunity for those forensic golden nuggets were destroyed before 2000.
These facts cannot be dismissed. People are creatures of habit and the same goes for an M.O., they are an offenders uniqueness shining though and are not subject to much variation.
Whilst keeping an open mind is required of any investigator, is is essential to follow what the evidence is saying, because there were probably a small yet significant number of potential killers in and around the south coast at the time who could be put in the frame on that basis alone!
You are trying to fit a suspect to the crime. This is just what police used to do in the UK, when the pressure was on for an arrest and conviction. They also ignored the facts that didn't fit with their narrative.....the bad old days of innocent folk being banged up far too often