In between classes, Derek spends some time in his office. Although he has no scheduled appointments, there's always the chance one of his students or colleagues will drop by to talk. In the meanwhile, though, he gets online and tries to learn something about the symbols he saw at the scene of Tim's murder. He starts by looking up sites dealing with occult and mystical symbols.
Derek has Computer 1 and Investigation 2, and is using a search engine to help in his research. What rolls/modifiers apply?