100 words - Anne's Judas

In 1944, Anne Frank, author of a now famous diary, was arrested by the nazis, along with everyone else in their Amsterdam hideout. She died in Bergen-Belsen.

Who betrayed the Frank family? A man named Ahlers, it now seems. Ahlers blackmailed Anne’s father Otto, who survived the war, twice: first in 1941, with Otto’s criticism of the Wehrmacht; after the war, from jail, with Otto’s 'collaboration' (he'd sold the Wehrmacht goods).

This doesn’t link Ahlers to the betrayal. But Ahlers knew both the Franks and the authorities, and was bankrupt at the time. He is a likely candidate at least.