American Death linked to Cartel Group

CNN -- Unwanted attention to a cartel known as Los Zetas is caused by suspected shooting death of an American by gunmen. Officials state that "It's more likely than not that more senior people in the organization are unhappy about what happened here because this brings pressure from the U.S. and Mexican authorities". David Hartley was killed on September 30 while enjoying a sightseeing trip on Falcon Lake. Drug cartel groups try to limit and minimize attacks on Americans because they know this would bring pressure on their organizations. It is highly believed that suspected Zeta killers may be already dead by their own senior organization members.

Source: http://articles.cnn.com/2010-10-15/justice/texas.hartley.zetas_1_drug-cartels-mexican-investigator-mexican-drug?_s=PM:CRIME