(Portland, OR)  --  Police say one man is dead following a fight in Southeast Portland.  Authorities say it happened around 8:30 last night at an apartment building in the 44-hundred block of Southeast 99th Avenue.  Police haven't released the name of the victim, who was pronounced dead at the scene after being found with traumatic injuries.  There's no word on whether police have arrested a suspect, but investigators believe the victim and suspect knew each other.