(Portland, OR)  --  Police are offering a 25-hundred-dollar reward for information leading to the arrest of a man accused of stabbing his father to death.  Police say 30-year-old Tyler Nees stabbed 60-year-old Brian Nees early Saturday morning in southeast Portland.  Police found Brian Nees with multiple stab wounds outside Mount Scott Pub, where he was reportedly trying to get help for his injuries.  He was pronounced dead hours later at a hospital.