Roger, 35, filed the claim in the US in January suing Geoff for defamation – claiming he made “false” statements to investigators following Liam’s death in Argentina on October 16 last year.
He wrote on social media: “Liam shared the same passions as me, the same dreams so to see his life now end so young hits hard, I’m truly gutted and devastated for his Family and of course his son Bear losing a dad x".
Geoff is said to have told authorities that Roger was part of a “care group” for Liam – who “could not be left alone in the vulnerable position in which he was”.
Roger had seen One Direction star Liam, 31, three times on the day he fell 45ft from his third-floor balcony at the CasaSur Palermo Hotel in Buenos Aires.
In his final days, Liam went to see his old One Direction bandmate Niall Horan in concert in Argentina along with Roger.
