(Portland, OR)  --  A suspect is in police custody, following a deadly stabbing at an apartment complex in East Portland.  A man in his 50s is accused of stabbing a man in his 20s to death yesterday at the Seven Gables Apartments on Southeast 122nd Avenue.  "The Oregonian" reports the suspect was known to police and was taken to a hospital for treatment of heat-related issues.  No names have been released.