A fan of Liam Payne exclusively tells PEOPLE that she had a few interactions with him leading up to the One Direction member's death, and there was "nothing strange or unusual" about his behavior.

Liam Payne's death hit Gen Z and millennials particularly hard. That's because so many of us grew up with Payne and the British boyband One Direction.

A cause of death has been determined for former One Direction singer Liam Payne, according to a preliminary autopsy report.