Author Topic: Flaws in David1819's Sheila scenario.  (Read 13645 times)

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Offline Roch

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Re: Flaws in David1819's Sheila scenario.
« Reply #180 on: September 03, 2022, 09:44:AM »
The following shows the victims' blood groupings along with that of the flake.  The best the defence could argue is that the flake represented a mixture of June and Nevill's blood groups which then matches Sheila's blood groups and the flake. But as Adam has pointed out this argument does not really get off the ground since they didn't sustain wounds which would result in 'drawback' or the blood entering the silencer in any other way.  The twins can be ruled out since the flake did not include their HP group. 

                                     ABO PGM             EAP          AK       HP
 
Nevill Bamber                 O     PGM1+         EAP BA     AK1     Hp2-1
June Bamber                  A     PGM1+         EAP BA     AK2-1   Hp2-1
Daniel Caffell                  O     PGM2+1+    EAP B       AK1      Hp2
Nicholas Caffell              O     PGM2+1+    EAP B       AK1      Hp2
Sheila Caffell                  A     PGM1+         EAP BA     AK1      Hp2-1

Blood Flake                    A                         EAP BA     AK1      Hp2-1

ABO = Blood Group System (Antigens)

PGM = Phosphoglucomutase (Enzyme)

EAP = Erythrocyte Acid Phosphatase (Enzyme)

AK = Adenylate Kinase (Enzyme)

HP = Haptoglobin (Protein)

By any chance, have you also got PB and DB's groupings to hand?
« Last Edit: September 03, 2022, 09:44:AM by Roch »

Offline killingeve

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Re: Flaws in David1819's Sheila scenario.
« Reply #181 on: September 03, 2022, 09:47:AM »
By any chance, have you also got PB and DB's groupings to hand?

No.  I have never seen any firm evidence their blood was analysed in this way other than a claim in Wilkes' book.  Even if it did match the flake how would their blood enter the silencer?

Offline Adam

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Re: Flaws in David1819's Sheila scenario.
« Reply #182 on: September 03, 2022, 09:47:AM »
Both supporters & guilters agree a guilty Bamber would result in Sheila's blood being in the silencer.

Due to the shot distances & locations of the other 23 shots.

Tests on the silencer confirmed it was Sheila's blood. I believe with 13 out of 17 markings matching Sheila's.

DB putting his blood into the silencer is a non starter.   
« Last Edit: September 03, 2022, 09:57:AM by Adam »
'Only I know what really happened that night'.

Offline Adam

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« Last Edit: September 03, 2022, 10:27:AM by Adam »
'Only I know what really happened that night'.

Offline Adam

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Re: Flaws in David1819's Sheila scenario.
« Reply #184 on: September 03, 2022, 10:45:AM »
17 out of 20 marks matching Sheila, rules out DB.
'Only I know what really happened that night'.

Offline Roch

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Re: Flaws in David1819's Sheila scenario.
« Reply #185 on: September 03, 2022, 11:29:AM »
No.  I have never seen any firm evidence their blood was analysed in this way other than a claim in Wilkes' book.  Even if it did match the flake how would their blood enter the silencer?

Well given that no scientific evidence was presented to show how Sheila's blood got in to the same exhibit, I'm not sure that's the right question.

Offline Adam

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Re: Flaws in David1819's Sheila scenario.
« Reply #186 on: September 03, 2022, 11:33:AM »
I suspect David came up with the crazy diluted period blood theory as he knew 17 out of 20 markers rules out DB.

David's theory was dismissed years ago. So another explanation is needed into how Sheila's blood got into the silencer.

Maybe it was back spatter from a contact & 'within 3 inches' shot into an area of high blood flow.

Just a thought.
« Last Edit: September 03, 2022, 12:06:PM by Adam »
'Only I know what really happened that night'.

Online snow66!

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Re: Flaws in David1819's Sheila scenario.
« Reply #187 on: September 03, 2022, 11:50:AM »
I haven't seen any forensic reports on this test?  The silencer and rifle were not destroyed and afaik are still available.

The LCN DNA testing of the silencer did produce a result for an unidentified male but this is hardly suprising given the way LCN DNA works (see post above) and the fact procedures were not in place to protect against contamination at the time since it was before DNA testing was used.  Even if procedures were in place to protect against contamination once it entered custody you would need to eliminate all those who ever handled the materials in the manufacturing of the silencer, wholesalers, retailers and anyone else who came into near contact with it.

I think its the likes of yourself snowie and Rob who have not done your homework properly and fail to understand how compelling the blood evidence is against Bamber.  Perhaps when you do you will covert to guiltism  :P
Will do my homework Miss Cutsie and see if I have an epiphany. ;)


Offline Rob_

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Re: Flaws in David1819's Sheila scenario.
« Reply #189 on: September 03, 2022, 12:17:PM »
The following shows the victims' blood groupings along with that of the flake.  The best the defence could argue is that the flake represented a mixture of June and Nevill's blood groups which then matches Sheila's blood groups and the flake. But as Adam has pointed out this argument does not really get off the ground since they didn't sustain wounds which would result in 'drawback' or the blood entering the silencer in any other way.  The twins can be ruled out since the flake did not include their HP group. 

                                     ABO PGM             EAP          AK       HP
 
Nevill Bamber                 O     PGM1+         EAP BA     AK1     Hp2-1
June Bamber                  A     PGM1+         EAP BA     AK2-1   Hp2-1
Daniel Caffell                  O     PGM2+1+    EAP B       AK1      Hp2
Nicholas Caffell              O     PGM2+1+    EAP B       AK1      Hp2
Sheila Caffell                  A     PGM1+         EAP BA     AK1      Hp2-1

Blood Flake                    A                         EAP BA     AK1      Hp2-1

ABO = Blood Group System (Antigens)

PGM = Phosphoglucomutase (Enzyme)

EAP = Erythrocyte Acid Phosphatase (Enzyme)

AK = Adenylate Kinase (Enzyme)

HP = Haptoglobin (Protein)

Thanks Cc for your detailed reply, do you have any idea why the PGM grouping was missing from the flake? I have come up against a wall looking into this?
« Last Edit: September 03, 2022, 12:18:PM by Rob_ »

Offline Adam

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Re: Flaws in David1819's Sheila scenario.
« Reply #190 on: September 03, 2022, 12:39:PM »
Supporters need to find a way Sheila's blood got into the silencer.

Via DB has been dismissed due to the 17 out of 20 markers.

Good luck.
'Only I know what really happened that night'.

Offline Rob_

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Re: Flaws in David1819's Sheila scenario.
« Reply #191 on: September 03, 2022, 01:11:PM »
Supporters need to find a way Sheila's blood got into the silencer.

Via DB has been dismissed due to the 17 out of 20 markers.

Good luck.

Can you explain these markers? the DNA was 3500 times more likely to be Junes, although Sheila's DNA being present could not be ruled out. You seem to be claiming it as fact it was Sheila's?

Offline Adam

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Re: Flaws in David1819's Sheila scenario.
« Reply #192 on: September 03, 2022, 01:27:PM »
Can you explain these markers? the DNA was 3500 times more likely to be Junes, although Sheila's DNA being present could not be ruled out. You seem to be claiming it as fact it was Sheila's?

I am not a scientist.

You need to find a way Sheila's blood got into the silencer. Not via diluted period blood or DB.

Guilters say because Bamber shot her twice in an area of high blood flow. One a contact shot. The other a shot 'within 3 inches' away. 
'Only I know what really happened that night'.

Offline Adam

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Re: Flaws in David1819's Sheila scenario.
« Reply #193 on: September 03, 2022, 01:33:PM »
I am not a scientist.

You need to find a way Sheila's blood got into the silencer. Not via diluted period blood or DB.

Guilters say because Bamber shot her twice in an area of high blood flow. One a contact shot. The other a shot 'within 3 inches' away.

My posts earlier today show only Sheila's blood would be in the silencer. Due to -

Distance of other shots.

Locations of other shots.

Both.
'Only I know what really happened that night'.

Offline Steve_uk

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Re: Flaws in David1819's Sheila scenario.
« Reply #194 on: September 03, 2022, 01:46:PM »
Can you explain these markers? the DNA was 3500 times more likely to be Junes, although Sheila's DNA being present could not be ruled out. You seem to be claiming it as fact it was Sheila's?
Rob if you read #496 it explains in more detail: http://www.homepage-link.to/JUSTICE/judgements/Bamber/index.html