Suspicion and Misidentification
The A.B.C. MurdersThis thread traces how familiar suspects and misleading appearances repeatedly redirect attention, from Franz Ascher and Donald Fraser to Cust.
increasing
Bearing strength in each event
decreasing
Franz Looks Guilty

The Obvious Husband
Threats remembered
Franz Ascher has threatened Alice and is found in hiding. Local witnesses readily connect his temper to the murder.
Doubt interrupts certainty
The wiped guide and polished warning do not fit his condition or abilities. Poirot and Inspector Glen resist turning likelihood into proof.
Donald Looks Dangerous

A Lover’s Jealousy
A known quarrel
Donald Fraser has a jealous temperament and once threatened murder during a fight. Megan fears that investigators will interpret the past as a confession.
An alibi of distress
Donald’s search for Betty takes him away from the beach, while his grief is genuine. His anger complicates the inquiry without making him the killer.
The Victim Misidentified

Earlsfield Instead of Downes
A near-identical target
Roger Downes and George Earlsfield resemble each other in build and scarf. The attacker’s confusion creates a murder that does not fit the promised D.
A clue within error
The mistake appears to support a madman’s imperfect system, but it also exposes the plan’s carelessness. The victim’s identity becomes a question of intention.
Cust Looks Like the Killer

The Evidence Converges
Material proof
Cust has been present near the towns, carries sales goods, and is linked to blood and a knife. Every visible sign seems to identify him as the murderer.
Personality contradicts proof
Poirot sees a timid and suggestible man where the evidence implies a daring planner. The mismatch becomes the reason not to stop investigating.
The Actual Suspect

Franklin in the Frame
Beneficiary and planner
Franklin’s inheritance motive, movements, and charm fit the crimes better than Cust’s apparent confession. The public ally becomes the central suspect.
Reversal completed
Poirot exposes the stalking-horse arrangement and the false serial pattern. Suspicion returns to the person who had seemed most helpful.
June 22, 1935
July 25, 1935
September 11, 1935
September 11–12, 1935
At the final confrontation