The Arizona Republic, January 13, 2009 by JJ Hensley
http://www.azcentral.com/arizonarepublic/local/articles/2009/01/13/20090113valleyhomicides0113.html
“The first thing that’s obvious is that it’s real. The second thing that’s obvious is that it isn’t breaking new ground,” Zimring said. “What this appears to be is more fluctuation than the start of a new trend.”