A killer was captured for a sensational drug-war slaying in London — thanks to an airline ticket stub that confirmed his identity.

Anis Fouad Hemissi, 24, was convicted Friday of gunning down Flamur Beqiri — the brother of “Real Housewives of Cheshire” reality TV star Misse Beqiri — on Christmas Eve 2019, The Sun reported.

Beqiri was shot eight times in front of his $2.5 million mansion, as his wife and 2-year-old son looked on in horror.

The killing was “as brutal as it was thoroughly shocking,” prosecutor Mark Heywood told jurors.

Hemissi was busted when a ripped airline ticket stub revealing his middle name confirmed his identity.

Beqiri reportedly headed a global drug ring out of Sweden, and had fled to London to escape a gang war in the Scandinavian nation.

Hemissi was allegedly part of a team of assassins sent from Sweden to London to kill the drug lord, the outlet reported.