Hallmarks of something suspicious. How could a 24 yo drown in knee-high water? ABC.NET.AU

Description

The last time Louisa Ioannidis's boyfriend says he saw her alive, she was fleeing into the night in her pink dressing gown.

The next day, he reported seeing the same pink robe floating in a nearby creek.

But he didn't go to investigate.

It still baffles Louisa's older brother, Tass Stouraitis. 

"I'm thinking, 'You saw Louisa's nightgown and what, you didn't go and approach it and get a closer look at what was going on?'" Tass says.

Eight days later, Louisa's body was found in the creek.