Research plan for my case

I am fairly new to the research of court cases, and so I decided to start with the basics.
Originally, I found the Roe, Warden v. Flores-Ortega case on this site, http://www.findlaw.com/.
It was a helpful site, and it has related cases to the appeal that I am going to research. I do a lot of my searching on Google, and so I plan to research this case through that search engine. I plan to research the decisions made for the case, and to find out what has happened. I am also curious about the actual murder case, because the Roe, Warden v. Flores-Ortega case is about a respondent who was convicted of second-degree murder. I may apply this to my research for my project.

I found several other sites that will help me research this case and appeal.

www.law.cornell.edu
www.oyez.org
http://law.onecle.com/ussc/528/528us476.html

I will look through these, and see what more I can find involving this case.