LONDON — British police say they have closed an investigation into who supplied Peaches Geldof with the heroin that killed her.

The 25-year-old TV personality, daughter of Live Aid organizer Bob Geldof, was found dead on April 7, 2014, at her home outside London.

Police discovered heroin and syringes in the house, and a coroner ruled that Geldof had died from a heroin overdose.

Police said Friday that they had “exhausted all lines of inquiry” into who had supplied the drugs.