We subscribe to WestlawNext Campus Research for legal research (but not Lexis-Nexis). This is probably your best bet for legal cases. Go to Databases by Title and choose “W.” Select the database WestlawNext Campus Research. Switch to the tab labeled Law. There are a number of ways to search depending on what information you have about the case. You can search by citation, by parties in the case (Brown v. Smith), or do an advanced search on whatever information you know.