With news of a new mass murder seemingly every few days, experts are trying to puzzle out if there's a connection between the attacks. Eight shootings have claimed 57 lives in just the last month, including 13 killed in a massacre in Binghamton last Friday, and some experts say that stress from the weak economy might be to blame for the recent outbreak of homicides. "The economic pie is shrinking to the point where it looks more like a Pop Tart and some feel all they're getting is the crumbs," one criminologist told The Washington Post. "There's a combination of feeling despair and hopelessness at the same time as a certain degree of anger and blame." Since that Post article was written, yet another attack took place, with four shot and one dead at a Korean Christian retreat in California after a gunman opened fire.