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

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

Liam, who was in Buenos Aires in Argentina with girlfriend Kate before he died aged 31 last Wednesday, welcomed a dog with ...

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

According to People magazine, the Coastal Carolina University alum was fiercely loyal to Payne, despite his alleged ongoing ...

Kate Cassidy, Liam Payne's partner, was photographed for the first time following the singer's death. The family, friends, ...

Liam Payne’s grief-stricken girlfriend Kate Cassidy emerged out in public for the first time in Florida on Sunday -- just ...

Four days after Liam Payne’s death, the late singer’s girlfriend, Kate Cassidy, was photographed in public. The influencer ...

Liam Payne's girlfriend Kate Cassidy "stood by him" amid his recent legal battle with his ex-fiancée, Maya Henry — something ...

Payne, who was only 31 at the time, fell from the balcony of his third-story room in CasaSur Palermo Hotel, where he had been ...

Liam Payne's girlfriend Kate Cassidy broke her silence on the death of the ex-One Direction singer, saying she is at a ...

Kate Cassidy, who was Liam Payne's girlfriend at the time of his death, wrote a message on Instagram to the late singer. Here's what to know about Kate Cassidy.