Accused "Craigslist Killer" "Brilliant"

says she remembers Markoff as being "extremely brilliant. Our junior year in college before organic chemistry exams, we would study together. I had been studying all week. He would come in the morning, 9:00 in the library, sit down next to me, saying, 'I haven't opened a book, I don't know anything. Teach me something." ' Houston says Markoff was a serious partier. Still, she observed, "Everyone partied. But when he partied, he'd party. But he would also stay in a lot."