Liam Payne's "erratic behavior reportedly began to escalate" following Kate Cassidy's departure from their vacation.

A source close to Kate Cassidy tells PEOPLE exclusively that Liam Payne's "erratic behavior started ramping up" when she left ...

Liam Payne and his girlfriend Kate Cassidy adopted a rescue dog just weeks before his tragic death, with the One Direction ...

The former One Direction member and the influencer vacationed in Buenos Aires just days before his tragic death at age 31.

It was announced last Wednesday evening that Liam Payne had died after falling from his hotel room balcony in Argentina ...

Kate Cassidy stood by Liam Payne during his legal issues with ex-fiancée Maya Henry before his tragic passing. Ex Maya Henry ...

The Liam Payne tragedy has shook everyone involved to its core. Nearly a week after his death, there are still a lot of questions left to be answered. That process, unfortunately, ...

Liam Payne’s relationship with Kate Cassidy proved to be a source of strength during a turbulent time in the singer’s life, ...

Liam Payne’s heartbroken girlfriend Kate Cassidy has been spotted for the first time since he plunged to his death in ...

One Direction star Liam Payne who tragically died last Wednesday, was left alone in Buenos Aires, Argentina, when girlfriend ...

Justin Bieber shared his support for fans mourning the loss of One Direction’s Liam Payne who died on Oct. 16, following a ...

According to sources close to the One Direction alum's girlfriend Kate Cassidy, the former's erratic behavior escalated after the latter left their Argentina vacation a few days before his death.