(Portland, OR)  --  One person is dead and three others are injured following a series of shootings across Portland over the weekend.  The Portland Police Bureau says the first shooting happened early Saturday morning in the Hazelwood neighborhood.  One man was killed in that shooting.  The second shooting happened later that afternoon in University Park, where two men were shot and injured.  The third shooting happened yesterday morning in the Glenfair neighborhood and left one man hospitalized with life-threatening injuries.  Police are still searching for suspects in all three shootings.