They said they had not established a definitive connection between Mr. Ebel and the killing of Mr. Clements.
Some officials have hinted that they suspected the men had ties to Al Qaeda, but others have said that no evidence has emerged to show any definitive connection.
Nitschke criticised the broadening diagnoses of mental illness, and told the hearing there was no evidence of a definitive connection between suicidal feelings and an illness.
Better food may make a hospital more comfortable, but there is no definitive connection between fresher, better tasting food and healthier patients.
Nitschke also criticised what he saw as a broadening definition of psychiatric illnesses in medicine, and said there was "no evidence" of a definitive connection between suicidal feelings and an illness.
However, as the resolution of these numerical models begins to approach the material micro-scale, the associated discretization requires a definitive connection to the microstructure.
But Dr Clarke, formerly of the University of Cambridge's education department, says it is not possible to make a definitive connection between tablet computers and improved results.
Definitive connection between those arrested and participation in prior black bloc actions has not been proven.
Despite the hacker's allusion to Guy Fawkes, no definitive connection to Anonymous has been established, according to PC Mag.
