There is no central repository of attorney trial records. You can try doing a "Google" search for the attorney's name--that should come up with at least some of his/her cases. If you have access to a legal research system (e.g. Lexis, Westlaw, FastCase), you can also search in that system, to find his/her cases. You can and should ask other lawyers you known, if they know this attorney and have an opinion; you can ask for references, though a lawyer is not obligated to provide any. There is no reliable, easy way to do the research you describe.