Honest belief and opinion
In Joe Karam's book David and Goliath on page 121, Karam says,quote:the time taken to travel from that point[Heath Street] to home could be anything from three minutes to six minutes,or even more.end quote.Karam says this despite the fact that David Bain,the person best qualified to know how long it would take him to cover the distance told the Police it would take 2 to 3 minutes,and despite the fact that Constable Peters walked it twice,the first time in 2min15s,the second time in 2min 16s.
I am a little confused about those bloodstains.Was Dr Harbison able to establish that some of them could only have come from Stephen?My understanding is that they could have come from either Stephen or Laniet,or even David.
Re the bloodstains on David's socks.As I understand it ,he would have had to remove his bloody socks and put them in the wash.Then he put on another pair of socks.When he came home he took off his shoes and managed to get some blood on that pair of socks.No bloodstains were found in his shoes.
What a pity Dr Pryde died before he could be asked why he didn't notice those scratches on David's torso.My assumption is that because David was being treated as a victim and not a suspect,Dr Pryde did not ask him to take his shirt off.Pro David Bainers would say that Pryde did examine his torso and that David must have somehow got those scratches later.
In Joe Karam's Book David and Goliath on page 203 Karam says: "I have no doubt that if the blood staining on Robin's clothing had been analysed for blood grouping, it would have been found to be the blood of deceased members of his family."
After Karam made these claims in his book, the blood on Robin Bains clothes was tested, the results below.
Forensic scientist Dr Sally-Ann Harbison said of the more than 20 samples taken from Robin Bain's bloodstained clothing the only full results were of his own DNA.
However forensic scientist Dr Sally-Ann Harbison said Blood stains on clothing David Bain wore contained the DNA of his brother Stephen. DNA in blood samples belonging to Steven Bain were found on David’s socks, and also on the front left, upper back and lower back of David's white T-shirt, and in a sample taken from a bloodstain on David's black shorts. News article Here
One further point: After Karam says on page 203 that "I have no doubt that if the blood staining on Robin's clothing had been analysed for blood grouping, it would have been found to be the blood of deceased members of his family". He goes on to say: "Only four real facts remain. A minute smudge of blood on the crutch of Davids shorts was established to be the blood of Stephen or Laniet. Two spots of blood on the soles of his socks were established to be Laniets or Stephen's. The fingerprints of his left fingers were detected on the rifle in a 'pickup' position, not a firing position. He had a light bruise to the right eye region, and a small recent skin abrasion on his right knee."
This quote from Karams book shows how little Karam seems to have known about the evidence at the time of his writing, eg: he only mentions one bruise on Davids head. Dr Pryde who examined David said there were three bruises. There is also no mention of Davids t-shirt or the blood found on it, and when ESR forensic scientist Dr Harbison examined samples from blood on the front left, upper back and lower back of David's white t-shirt, all the samples matched Stephen's DNA.