(Portland, OR)  --  Authorities are confirming the death of a University of Portland student who went missing nearly two weeks ago.  The state medical examiner's office confirmed yesterday that a body found Sunday in the Willamette River near the St. Johns Bridge was that of Owen Klinger.  There's no word yet on how Klinger died.  Family and friends held a Mass at the University of Portland chapel yesterday in Klinger's honor.