Sorry, the summary and title is just plain incorrect. This announcement has nothing to do with the Higgs.
A few months ago, CDF claimed that they detected a new particle which could not be the higgs, but was speculated to be a new particle. As explained here, it wasn't possible for the new particle to be the Higgs.
Today DZERO announced that they did not see any signal where CDF claimed to see one. So one of the two projects has an error in their analysis.