(Woodburn, WA)  --  Woodburn police say they've arrested a man accused of swinging a machete and injuring three men.  Authorities say the suspect caused a disturbance yesterday while armed with the machete at a nearby Walmart before going to the apartment complex.  Police say they contacted the suspect, Alan Lee Brock, in a car outside the store and arrested him.  Brock is facing charges of attempted murder.  None of the injuries is considered life-threatening.