John Pizer ('Leather Apron')

Verified background

Biographical facts with sources.

• Retrieved Arrested 10 September 1888 on suspicion of Chapman's murder. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

Opportunity and timeline

Where the person is documented to have been, and where the record is silent.

• Inference Alibied for two murders. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

Strongest supporting evidence

The best case proponents can make from the record.

• Inference Local 'Leather Apron' rumours and press naming. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

Strongest contradictory evidence

Evidence that tells against the theory.

• Retrieved Alibis for two murders cleared him. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

Disputed and missing

Points in dispute, and records that do not exist or were not found.

• Retrieved None material in sources accessed. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

Assumptions required

What a reader has to accept for the theory to work.

• Inference Would require evidence beyond proximity, illness, later violence or a relationship with a victim — none of which is itself evidence of guilt. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

What would change the assessment

Evidence that, if found, would move the picture.

• Inference Documented presence at a scene, or a forensic or reliable witness link, would strengthen; documented absence would eliminate. ○ Weakly supported claim: John Pizer ('Leather Apron') was arrested on 10 September 1888 and cleared when he had alibis for two murders.[1][2]

Bottom line