it was also alex kogut's favorite color.u have more strength in your little finger then the worst thing that could have ever happened to you. >> two years later, there was still purple ribbons in alex kogut's home town. her friends, attending a college memorial in honor of students who have died, at a college that itself had to heal, ecologists opened in center to raise awareness about dating violence. and there are still those, like paige whitney, who will never let the memory of a grateful, joyous, young spirit, fade away. >> for the rest of my life, whenever i see purple, i will think of her. whenever i see a story of any type of domestic violence, i will think of her. and i will never stop telling her story. >> that's all for this edition of dateline. i'm natalie morales. thanks for watching. ks for watching. >> there's lots of definition