A beautiful 22-year-old woman. A festival packed with thousands of people. And one man whose ego couldn't handle being told no.

Tiaran Poyau was educated, adventurous, and had her entire future ahead of her. She had just earned her master's degree, landed her first accounting job, and was ready to take on the world.

But during Brooklyn's 2016 J'Ouvert Festival, a stranger started dancing on her without permission.

Tiaran's response?

"Get off me."

Four words that should've ended the interaction.

Instead, they sparked a chain of events that would leave one family planning a funeral and another family watching their loved one head to prison.

This week on One Bad Night, Tiffany aka Det. Lightskinn breaks down the senseless murder of Tiaran Poyau, the absolutely ridiculous way police caught her killer, and why some people let their ego write checks their common sense can't cash.

Because cousins...

Nobody should lose their life for telling somebody to leave them alone.