http://www.9news.com/news/article.aspx?storyid=73647 BOULDER - University of Colorado police are investigating threatening e-mails with anti-evolution messages sent to biology professors at the Boulder campus. Police Commander Brad Wiesley says the e-mails claim be from a religious group but investigators don't know whether more than one person was behind them. He said the e-mails were considered threatening and made reference to killing people who back evolutionary theory. He said they didn't contain any specific threat against any individuals. "The people that are worried in biology are certainly concerned. I mean it's not every day they're threatened by somebody who doesn't agree with the work that they're doing and so there's heightened concern," said Wiesley.