Erin Peterson, 18, died while she was in her French class, said her dad, Grafton Peterson. The last time he spoke to her was during a visit at school on Sunday, he said. A fan of "old-school" TV shows like "Diff'rent Strokes" and "Sanford and Son," Peterson described herself on what appears to be her MySpace profile as a "jeans and a t-shirt girl." Friends left anguished messages on her profile as news of the shootings first spread. The messages now recall fond memories of graduation and prom night. "You have no idea how much my heart aches knowing I'll never see you again," one message read.